Originally Posted by
Hobbsy
Performance enhancement was not the original intent of the TurboHeader. A compact easy to hide in a cowl, exhaust, was the real intent. The extra 200 to 300 rpm, (depending on which engine) was an added bonus.
Regardless Dave, $70 for a muffler is a lot when for $100 more one can get a complex modification that boosts power of the FG-84R3 by over 40% all the while increasing fuel economy & reliability.
Given the best street price of $1300 USD for the engine, the added cost is about 13%. Far less % wise than a $70 muffler on a Saito single. Not saying the Turboheader isn't worth it, just saying the Ray English mod is still $$$ well spent IMO. Especially when the engine is used to power heavy, round engine warbirds where power to weight is a priority.