Fuel Systems - EFI Upgrade Kits

500 EFI Flame Arrestor Upgrade Kit
Starting From:
$1,699.99

This Part has options, please click the button below to order.

500 EFI Flame Arrestor Upgrade Kit

755-68 + Option(s)

500 EFI Flame Arrestor Upgrade Kit

Are you wanting more out of your 500HP EFI? A custom EFI calibration/performance kit for Mercury Racing 500HP EFI's that maximizes the engines power capacity by increasing the RPM limit, increasing spark advance and modifying the fuel curve to give your boat a cleaner transom and a better performing engine. By optimizing the spark curve for 91 or better fuel,adding a High flow Flame arrestor, High Flow throttle body and fuel pressure regulator show gains of 25-30HP on stock engines and as much as 50 plus horsepower on modified engines with camshaft and cylinder head changes can be found while not sacrificing stock reliability. The recalibration also features a 5800rpm limit over the stock 5400rpm

NOTE: Adding a 1000cfm with Port matching to the plenum chamber and the center divider is required to be removed from the inlet of manifold allowing room for the throttle body blade to move freely. Now that the units match the 525 efi size. This takes a 525 gasket where it mates to the manifold not the original o-ring that the 500s had. One bolt hole needs to be clearance d slightly once the gasket is laid on the throttle body. The front is machined and drilled/tapped 5/16 fine thread and now accepts the 525 efi flame arrestor

Components Include:
  • HP 500 Flame Arrestor
  • 500 EFI Tuned & Bored Throttle Body 1000CFM
  • Computer Re-Calibration & Monitoring (ECU) - Non Supercharged Engine
  • HP 500 / 525 Flow Command Fuel Pressure Regulator

 

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.


Computer Re-Calibration & Monitoring (ECU) - Non Supercharged Engine
Your Price:
$375.00

Computer Re-Calibration & Monitoring (ECU) - Non Supercharged Engine

620-75302

Computer Re-Calibration & Monitoring (ECU) - Non Supercharged Engines

Have you modified your stock Mercury EFI engine by adding high performance exhaust, a bigger cam, a high flow flame arrestor, or added a supercharger?

Hardin Marine can recalibrate your Mercury ECU (computer) to yield the very most of your engines power The ECU precisely controls fuel requirements, detonation control, idle speed and RPM limitations We have dyno-tested multiple combinations and know what works! Call us with your application requirements and we will lead you to maximum horsepower from you EFI engine Allow approximately 4-7 days turn around time.

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.


Computer Re-Calibration & Monitoring (ECU) - Supercharged Engines
Your Price:
$425.00

Computer Re-Calibration & Monitoring (ECU) - Supercharged Engines

620-75303

Computer Re-Calibration & Monitoring (ECU) - Supercharged Engines

Have you modified your stock Mercury EFI engine by adding high performance exhaust, a bigger cam, a high flow flame arrestor, or added a supercharger?

Hardin Marine can recalibrate your Mercury ECU (computer) to yield the very most of your engines power The ECU precisely controls fuel requirements, detonation control, idle speed and RPM limitations We have dyno-tested multiple combinations and know what works! Call us with your application requirements and we will lead you to maximum horsepower from you EFI engine Allow approximately 4-7 days turn around time.

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.


SE Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines
Starting From:
$999.99

This Part has options, please click the button below to order.

Holley Sniper EFI Self-Tuning Kit - Shiny, Black Ceramic or Classic Gold

710-550-51 + Option(s)

Holley Sniper EFI Self-Tuning Kit - Shiny, Black Ceramic or Classic Gold

Holley just brought EFI within range! Introducing Sniper EFI! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. Put an end to cold start issues, hesitations, vapor lock, and flooding. Upgrade to Sniper EFI and get the tactical accuracy of EFI today!

  • Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 is recommended)
  • Throttle body mounted ECU – no extra boxes to mount
  • Supports up to 650hp with Four 100 Lb/Hr Injectors!
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
  • Integrated ignition timing control & coil driver
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays.
  • Simple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
  • Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
  • Available in base & master kits (Master kits include complete fuel system consisting of; 20ft of 3/8" Vapor Guard Fuel Hose, 12-920 Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank!)
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
  • OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service.
  • Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
  • Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
  • A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
  • Patent Pending

Holley Sniper EFI Self-Tuning Master Kit - Shiny, Black Ceramic or Classic Gold
Starting From:
$1,259.99

This Part has options, please click the button below to order.

Holley Sniper EFI Self-Tuning Master Kit - Shiny, Black Ceramic or Classic Gold

710-550-51 + Option(s)

Holley Sniper EFI Self-Tuning Master Kit - Shiny, Black Ceramic or Classic Gold

Holley just brought EFI within range – introducing Sniper EFI master kits! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. The Sniper EFI master kit contains the most complete EFI fuel system on the market. Everything is included to completely plumb your fuel system including; 20 feet of 3/8" EFI Hose, in-line fuel pump, post and pre fuel filters, return bulkhead, and all of the necessary fittings and hardware. Put an end to cold start issues, hesitations, vapor lock, and flooding. Upgrade to Sniper EFI and get the tactical accuracy of EFI today!

  • Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 is recommended)
  • Throttle body mounted ECU – no extra boxes to mount
  • Supports up to 650hp with Four 100 Lb/Hr Injectors!
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • Includes complete fuel system consisting of; 20ft of 3/8” Vapor Guard Fuel Hose, Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank!
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
  • Integrated ignition timing control & coil driver
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays.
  • Simple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • The included Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
  • OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service.
  • Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
  • Patent Pending

SE Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines
Starting From:
$1,499.99

This Part has options, please click the button below to order.

Holley Super Sniper 1250 EFI Self-Tuning Kit - Shiny, Black Ceramic or Classic Gold

710-550-51 + Option(s)

Holley Super Sniper 1250 EFI Self-Tuning Kit - Shiny, Black Ceramic or Classic Gold

Introducing Holley Super Sniper EFI! Looking to convert your blow thru carbureted turbo engine to EFI?Look no further than Holley for the Super Sniper 4150 EFI systems featuring 8, 100LB/HR Fuel Injectors capable of supporting up to 1250 HP on forced induction or dry nitrous applications. Is your combination not producing that much horsepower? No problem, Holley also offers a 650 HP four injector version for lower horsepower applications with a power adder or someone just needing additional sensor inputs. Did we mention the Super Sniper also has full nitrous control built-in? That's right, no need for a separate nitrous controller! Every Super Sniper EFI system also comes with a USB to CAN tuning cable, as well as free downloadable Sniper EFI Software to give you unlimited control of your engine.

  • 1250 HP version features eight 100 Lb/Hr Injectors (Forced Induction)
  • The 800 CFM Main Body will support 700 Horsepower Naturally Aspirated
  • Compatible with Draw thru or blow thru forced induction applications
  • Built-in Single stage progressive nitrous control
  • Programmable inputs and outputs
  • Integrated ignition timing control for precise timing curves
  • Only 4 Wiring Connections Required! (Battery +, Battery-, Switched Ignition & RPM)
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI) for N/A or Nitrous applications
  • Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
  • High-Resolution Full Color Touchscreen for initial Setup, Tuning, and Gauge Displays
  • Simple Calibration Wizard (Answer a few questions about your engine, and it creates the base map, then starts tuning on its own!) - NO laptop required!
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
  • OEM Style TPS/IAC and fuel pressure regulator, for years of dependable service
  • Included clamp-on oxygen sensor kit ensures a leak-free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
  • Throttle body mounted ECU – no extra boxes to mount
  • USB to CAN Communication cable included for easy laptop tuning of advanced controls
  • Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 recommended)
  • Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
  • A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
  • Compatible with Holley EFI analog gauges and electronic dashes
  • Patent Pending

SE Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines
Starting From:
$1,199.99

This Part has options, please click the button below to order.

Holley Super Sniper 650 EFI Self-Tuning Kit - Shiny, Black Ceramic or Classic Gold

710-550-5 + Option(s)

Holley Super Sniper 650 EFI Self-Tuning Kit - Shiny, Black Ceramic or Classic Gold

Introducing Holley Super Sniper EFI! Looking to convert your blow thru carbureted turbo engine to EFI? Look no further. Holley offers a 650 HP four injector version for lower horsepower applications with a power adder or someone just needing additional sensor inputs. Did we mention the Super Sniper also has full nitrous control built-in? That's right, no need for a separate nitrous controller! Every Super Sniper EFI system also comes with a USB to CAN tuning cable, as well as free downloadable Sniper EFI Software to give you unlimited control of your engine.

  • 650 HP version features four 100 Lb/Hr Injectors
  • Compatible with Draw-Thru or Blow-Thru forced induction applications
  • User-friendly Boost Control with handheld adjustability
  • Programmable Target Air Fuel Ratios per Boost level
  • Advanced boost control is available via free Sniper EFI tuning software, including Boost vs RPM and Boost vs Time – Same popular boost control offered in Holley HP and Dominator EFI systems!
  • 2.5 Bar MAP sensor included which safely works on applications up to 21.5 PSI
  • Built-in Single stage progressive nitrous control
  • Dry or Wet Nitrous Support
  • Progressive or Non-Progressive control strategies
  • Lean/Rich AFR Cutoff
  • Time or RPM based Timing Retard and much more!
  • Integrated ignition timing control for precise timing curves
  • Programmable inputs and outputs
  • Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure Sensors
  • Six Programmable Ground Outputs
  • One +5v Reference Output - +5V Power Supply for 0-5v Sensors
  • One Sensor Ground – Ground supply for 0-5v Sensors
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI) for N/A or Nitrous applications
  • Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
  • Only 4 Wiring Connections Required! (Battery +, Battery-, Switched Ignition & RPM)
  • High-Resolution Full Color Touchscreen for initial Setup, Tuning, and Gauge Displays
  • Simple Calibration Wizard (Answer a few questions about your engine, and it creates the base map, then starts tuning on its own!) - NO laptop required!
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
  • OEM Style TPS/IAC and fuel pressure regulator, for years of dependable service
  • Included clamp-on oxygen sensor kit ensures a leak-free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
  • Throttle body mounted ECU – no extra boxes to mount
  • USB to CAN Communication cable included for easy laptop tuning of advanced controls
  • Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 recommended)
  • Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
  • A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
  • Compatible with Holley EFI analog gauges and electronic dashes
  • Patent Pending

Computer Re-Calibration & Monitoring (ECU) - Non Supercharged Engine
Your Price:
$950.00

ECM 555 Computer Re-Calibration & Monitoring (ECU) - 496 Mag and HO, 525 Non Supercharged Engine

620-75309

ECM 555 Computer Re-Calibration & Monitoring (ECU) - 496 Mag and HO, 525 Non Supercharged Engines

Have you modified your stock Mercury EFI engine by adding high performance exhaust, a bigger cam, a high flow flame arrestor, oradded a supercharger?

Hardin Marine can recalibrate your Mercury ECU (computer) to yield the very most of your engines power The ECU precisely controls fuel requirements, detonation control, idle speed and RPM limitations We have dyno-tested multiple combinations and know what works! Call us with your application requirements and we will lead you to maximum horsepower from you EFI engine. Allow approximately 4-7 days turn around time.

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.


500 EFI Tuned & Bored Throttle Body 1000CFM
Your Price:
$659.99

This Part has options, please click the button below to order.

500 EFI Tuned & Bored Throttle Body 1000CFM

620-15530

500 EFI Tuned & Bored Throttle Body 1000CFM

Hardin Marine has taken your factory Mercury Racing EFI throttle body and combined their precision machining and tuning experience into a power producing option for all Mercury 500/525 EFI applications. High flow throttle bodies wake these engines up.

These “Monoblade” flow 1000 CFM to match Mercury’s 525HP EFI engine. The “Monoblade” has self lubricating bronze bushings for the shaft to rotate on, knife edged stainless steel throttle blade, Stock OEM sensors and throttle cable mounts in the original location. 25 HP gain is available with recalibration of the ecu and the throttle valve. Port matching to the plenum chamber and the center divider is required to be removed from the inlet of manifold allowing room for the throttle body blade to move freely.

Now that the units match the 525 efi size. This takes a 525 gasket where it mates to the manifold not the original o-ring that the 500s had. One bolt hole needs to be clearance d slightly once the gasket is laid on the throttle body. The front is machined and drilled/tapped 5/16 fine thread and now accepts the 525 flame arrestor.

Optional High Flow flame arrestor is suggested #625-5250

Note: You will have to remove and send in your throttle body to have this process done. This is not a shelf item. Please call our technical staff for any questions or assistance on the process.

Sold as an Exchange, $500.00 Core Charge.

NOTE: Adding a larger cfm throttle body will require port matching and blending to the OEM plenum chamber and the center divider is required to be removed from the inlet of manifold allowing room for the throttle body blade to move freely. Now that the units match the 525 efi size. This takes a 525 gasket where it mates to the manifold not the original o-ring that the 500s had. One bolt hole needs to be clearance d slightly once the gasket is laid on the throttle body. The front is machined and drilled/tapped 5/16 fine thread and now accepts the 525 efi flame arrestor


HP525 Bored Throttle Body 1300CFM
Your Price:
$659.99

This Part has options, please click the button below to order.

HP525 Bored Throttle Body 1300CFM

620-15535

HP525 Bored Throttle Body 1300CFM 

Hardin Marine has taken your factory Mercury Racing EFI throttle body and combined their precision machining and tuning experience into a power producing option for all Mercury 500/525 EFI applications.

These throttle Bodies reinstall easily providing an OEM fit while offering improved performance and quality than the stock OEM units. A factory stock 1080CFM unit is CNC Machined, Ported, and finally flowed to 1308CFM. A new larger precision knife blade style throttle blade is then hand contoured and (Blue Printed) to the throttle body bore. This delivers Increased airflow, improved throttle response, as well as 10-15 additional horsepower. These units are sold on an exchange basis. Note an aftermarket flame arresstor is suggested (Part #625-5250)  due to the increased throttle bore opening size 

Note: You will have to remove and send in your throttle body to have this process done. This is not a shelf item. Please call our technical staff for any questions or assistance on the process.

NOTE: Adding a larger cfm throttle body will require port matching and blending to the OEM plenum chamber.to allow the throttle body blade to move freely. One bolt hole may need to be clearanced slightly once the gasket is laid on the throttle body. The front is machined and now accepts the Hardin Marine 525 efi flame arrestor


Mercury Racing 600/662/700SCM Stage 1 Kit
Your Price:
$2,699.99

Mercury Racing 600/662/700SCM Stage 1 Kit

620-75325

Mercury Racing 600/662/700SCM Stage 1 Kit

In order to take advantage of the performance calibration we need to let the engine breathe and process those gases efficiently. This is completed by down sizing the supercharger pulley to slightly increase air output. Next a beautiful billet high flow flame arrestor is introduced to allow the supercharger to draw the added air into the engine. Processing this added air will require cooling the engine just slightly as well as cooling the intake air charge through a bolt on water system upgrade to increase system pressure and intercooler efficiency, These power increase vastly improve onto plane times with a big gain in acceleration. By increasing the factory rpm limiter this gives customers the ability to greatly increase top speed MPH while running original props. The stock RPM limit of 5400 is modified to 6000rpm. This Stage 1 upgrade features a performance computer recalibration that increases the maximum power output by more than 138HP* and 122 ft pounds of torque*.

Components Include:
  • Stage 1 Performance computer recalibration
  • High flow Billet Flame Arrestor
  • New Supercharger pulley
  • Hi flow Intercooler plumbing fitting kit
  • Low temp high flow thermostat
  • Performance computer recalibration
  • All of necessary components to required to make this system functional and reliable.

 

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.


Mercury Racing 600/662/and 700SCM Stage 2
Your Price:
$3,299.99

Mercury Racing 600/662/700SCM Stage 2

620-75330

Mercury Racing 600/662/and 700SCM Stage 2

The Stage 2 system provides even more power than stage 1 (approx 20HP more). This is accomplished through a more aggressive performance tuned PCM calibration as well as by increasing the supercharger output (increased boost) as well as a cooler set of spark plugs to increase combustion deficiency.

Kit Performance features:
  • Hi-performance PCM calibration with MPH gains of up to 9-10mph
  • Increased horsepower for improved top speed
  • Increased low-end torque for decreased planing time
  • Increased low, mid and high speed torque for better acceleration with improved throttle response
  • Increased spark at low and mid speeds for increased overall performance
  • Stock 5400 RPM limit is increased to 6000 RPM giving increased propping range and more power
  • 91 octane safe (RON+MON)/2
  • Stock idle, starting and drive-ability quality is retained

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.


SE Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines
Your Price:
$285.99

SE Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines

620-75304

"SE" Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines

This kit is an excellent choice for those just beginning performance modifications on a MerCruiser Magnum EFI Series engine. This kit includes the "SE" Special Edition flame arrestor that utilizes a high flow K&N clamp-on style filter element and high velocity air inlet adapter which increases air flow by as much as 20%. The included Flow Command adjustable fuel pressure regulator allows you to tune to the proper air flow by allowing adjustments from 25 to 65 PSI.


SS Sport Series Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines
Your Price:
$659.99

SS Sport Series Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines

620-75305

"SS" Sport Series Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines

Do you want quicker acceleration, faster planing, and increased performance of up to 15 HP? If so, the "SS" Super Sport tuning kit for your MerCruiser Magnum MPI engine is what you need. This kit includes the "SS" Sport Series flame arrestor that utilizes a clamp-on style K&N element with our high velocity style air inlet. This kit include re-programming of your factory ECU in which we will modify both the fuel and spark curves as well as increasing your rev limiter and injector timing to 5400 RPM. This kit also comes with an adjustable billet Flow Command fuel pressure regulator that allows you to tune your air fuel mixture for optimum performance.

NOTE: You will need to send us your ECU with this questionnaire for re-calibration.

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.


Max Volt Catalyst Eliminator Computer
Starting From:
$459.99

This Part has options, please click the button below to order.

Max Volt Catalyst Eliminator Computer

121-120 + Option(s)

Max Volt Catalyst Eliminator Computer

If increased engine performance is what you are after but have concerns about the catalyst equipment on your engine, then the Catalytic Eliminator Computer (CEC) is what you need! Designed specifically for marine engines, Maxvolt Performance worked with a team of marine electrical engineers to create a product this simple and gets the job done. There is no cutting or splicing of wires; everything is plug and play! And there are three ways to play! Your engine can be Aggressive,Mild, or Basic:

Aggressive: If you want to be aggressive and replace your stock exhaust system with a header system, then this is the product for you. We worked with the header design teams at Hardin Marine and other popular manufacturers to be sure their headers are manufactured to work with CEC. To be compatible, the header must be made to accept a pre-oxygen sensor!

Mild:If changing over to headers is too aggressive for you, then removing the catalysts but retaining the stock exhaust manifolds is the path for you. Depending on the engine, 10 to 15 horsepower will be gained by removing the catalysts and using the factory exhaust system.

Basic:If your boat has fouled its post oxygen sensors and is no longer under the factory warranty, then you know what it costs to have new sensors installed and the trouble codes cleared. For less than what your dealer charged, you can purchase and install the CEC and never have to worry about throwing that fault code again!

Note:
  • Only works with the 4 pin plug switching style O2 sensors.
  • Will not work on the newer wide band O2 sensors with 6 pin plugs.

WARNING! This module is not to be used on emissions regulated waterways. The intent of this module is to allow the running of a catalyzed marine engine without the catalytic converters installed and without triggering any ECU error codes. With the engine operating in this condition, the emissions control system will be rendered inoperative. For this reason, do not operate the vessel on emissions regulated waterways. This computer system is not legal for any purpose other than testing purposes and not for use on any state or federal waterway.

305 MPI Stage 1
Your Price:
$660.11

305 MPI Stage 1

485CM-305MAG

305 MPI Stage 1

The stage 1 maximizes the power output of the stock engine by running 91 octane or better vs the stock 87 octane, increasing the maximum spark advance, increased ignition dwell from the ignition coil and maximized air-fuel ratio. Calibration increases torque levels throughout the entire rpm curve while making more peak hp for increased speeds. Customers report far cleaner transoms (less soot) with increased throttle response.

    Key features:
  • Hi-performance PCM calibration
  • 5600 RPM limit
  • 5% - 8% power increase over stock
  • Increased acceleration with increased torque output

NOTE: You will have to remove and send in your ECU to have this process done.

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.


350 Mag Stage 1 (DTS)
Your Price:
$660.99

350 Mag Stage 1 (DTS)

485CM-350MAG

350 Mag Stage 1 (DTS)

The stage 1 maximizes the power output of the stock engine by running 91 octane or better vs the stock 87 octane, increasing the maximum spark advance, increased ignition dwell from the ignition coil and maximized air-fuel ratio. Calibration increases torque levels throughout the entire rpm curve while making more peak hp for increased speeds. Customers report far cleaner transoms (less soot) with increased throttle response.

    Key features:
  • Hi-performance PCM calibration
  • 5600 RPM limit
  • 5% - 8% power increase over stock
  • Increased acceleration with increased torque output

NOTE: You will have to remove and send in your ECU to have this process done.

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.


496 HO Stage 1
Your Price:
$660.99

496 HO Stage 1

485CM-496HO

496 HO Stage 1

With full PCM control, we can offer customers many different options for stock and modified engines. Whether its the Stage 1 and 2 packages or custom calibrations for your application, we can easily handle it with incredible accuracy and a ultra fast turn-around time.

The Stage 1 system is a computer re-calibration that increases the maximum rpm level while maintaining a conservative timing curve for 89-octane gas. This calibration is designed to be conservative and reliable like stock, but a higher maximum rpm level for more prop selection. Stage 1 achieves only modest power increases such as 8-10 foot-pounds of torque and 8-10 horsepower.

    Key features:
  • 5450 RPM limit (5250 on Base models)
  • 89 octane safe

NOTE: You will have to remove and send in your ECU to have this process done.

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.


496 HO Stage 1 (DTS)
Your Price:
$660.99

496 HO Stage 1 (DTS)

485CM-496HOD

496 HO Stage 1 (DTS)

 

With full PCM control, we can offer customers many different options for stock and modified engines. Whether its the Stage 1 and 2 packages or custom calibrations for your application, we can easily handle it with incredible accuracy and a ultra fast turn-around time.

The Stage 1 system is a computer re-calibration that increases the maximum rpm level while maintaining a conservative timing curve for 89-octane gas. This calibration is designed to be conservative and reliable like stock, but a higher maximum rpm level for more prop selection. Stage 1 achieves only modest power increases such as 8-10 foot-pounds of torque and 8-10 horsepower.

    Key features:
  • 5450 RPM limit (5250 on Base models)
  • 89 octane safe

NOTE: You will have to remove and send in your ECU to have this process done.

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.


496 Mag Stage 1
Your Price:
$660.99

496 Mag Stage 1

485CM-496MAG

496 Mag Stage 1

 

With full PCM control, we can offer customers many different options for stock and modified engines. Whether its the Stage 1 and 2 packages or custom calibrations for your application, we can easily handle it with incredible accuracy and a ultra fast turn-around time.

The Stage 1 system is a computer re-calibration that increases the maximum rpm level while maintaining a conservative timing curve for 89-octane gas. This calibration is designed to be conservative and reliable like stock, but a higher maximum rpm level for more prop selection. Stage 1 achieves only modest power increases such as 8-10 foot-pounds of torque and 8-10 horsepower.

    Key features:
  • 5450 RPM limit (5250 on Base models)
  • 89 octane safe

NOTE: You will have to remove and send in your ECU to have this process done.

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.