Bicylce-Engines expansion chamber

Jan 21, 2015
610
21
18
Portland, Oregon
That expansion chamber looks really tiny, hardly even worthy of being called an expansion chamber lol. Anyways, I doubt you will see much improvement with one that small, but since you already have it, you might as well put it on and see what happens.
 

mobike91

Member
Sep 14, 2010
111
2
18
lebanon, oregon
I bought that pipe years ago when they called it the banana pipe. It didn't do much but sounded awesome. I ended up cutting the exhaust off at the end and building a full length pipe after it out the back of the bike. It looked awesome.
 

mobike91

Member
Sep 14, 2010
111
2
18
lebanon, oregon
I would say no. They don't offer any power band in that design at all. The header port is nothing more than stock, the tune if it had one would be at a pretty low rpm.