Indmar 5.7L Cast Iron Exhaust Riser 3-1/2 Inch 

Cast iron exhaust riser with 3 1/2" exhaust outlet. (except LT-1 engines) Fits 531051, CHV-1-83, CHV-1-92, CHVA-1-84, FM-1-83, FM-1-92 manifolds

Barr Marine castings have a thicker interior wall, are painted to match original manufacturer colors and are packed in foam for added protection during shipping and storage. Barr manifolds and exhaust connectors are designed to minimize back pressure, and in many cases more r.p.m.'s are achieved after replacing an OEM manifold with Barr replacement parts.

• Fits most Indmar 5.7 liter engine applications.
• 3 year limited warranty on Barr exhaust manifolds, risers and exhaust connectors (1 year when used for commercial purposes).

Manufactured by Barr Marine. Part number 532027.