BLACK Expansion Chamber Exhaust Pipe - increase the power of your 49cc-69cc ("80cc") engine. Low cost yet heavy duty. The ability to tune and fit almost any bike makes this newcomer to the market a real treat. Fully tested by our testing team. This pipe gets rave reviews for dialing your engine UP. Along with a few minor mods, tuning the pipe puts the power band where you want it, and when your engine comes on this pipe - you will know it. Supplied with everything you need along with our online instructions: the pipe, fittings, hardware, a hanger, a silencer and a hefty Al exhaust gasket. Each bike is different and some fabrication for hanging the rear of the pipe may be required. The typical installation will require the use of a rear mounted kickstand.

Pipe Installation Instructions