hear it! and where earplugs...wow spelling)
I guess I was hungry for breakfast and was typing too fast in that post.
sorry...forgot to answer one question...did not do any pipe tests yet...soon though.
I estimate that with a pipe you will get 700-850 rpm over included muffler you see. And that is the exact muffler that will come with the engine...its been tested extensively and we have already made 500 of them...so...