Shop Now for Marine Exhaust Manifolds. Macomb Marine Parts handles an array of aftermarket boat repair parts such as Piranha Propellers, SEI Sterndrives and Marine Exhaust Manifolds as well as original equipment marine repair parts by MerCruiser, OMC, Volvo Penta, Crusader, Pleasurecraft Marine, Chrysler, Chris Craft, Quick Silver, and Mercury Marine. Shop Now for Marine Exhaust Manifolds! For more information about a specific Marine Exhaust Manifolds or another product please email us!