Factory B-Pipe Style Exhaust Manifold Yamaha billet And since it’s a regulator

And since it’s a regulator

When fitting a set of carbs

thanks to a tip from Tim Tynan

enhancing flow while minimizing internal volume

can create far greater losses than most people realize

Factory B-Pipe Style Exhaust Manifold Yamaha billet And since it’s a regulatorAfter a long search, were excited to finally offer these manifolds! Designed to run hotter for improved performance, this manifold does not feature cast in cooling. This approach has shown to yield better power results on the dyno for Yamaha engines, thanks to a tip from Tim Tynan. These manifolds fit the Yamaha 701 Superjet (61X) and 650 Superjet (6M6) engines. The header pipe hole measures 46mm, and the manifold opening is 45mm, with ample material