79cc Expansion Chamber Banana Muffler with Adapterpter - Chrome

NOTE: Not compatible with Phatmoto Rover

This expansion chamber enhance its power output by improving its volumetric efficiency.

It makes use of the energy left in the burnt exhaust exiting the cylinder to aid the filling of the cylinder for the next cycle.

Provides you with a boost in power and top speed.

* Orders received Monday - Friday by 12:00nn PT are eligible for
Same Day Shipping! Except for USPS which ships the next business day.

Our gasoline operated products are NOT compliant with Environmental Protection Agency ( E.P.A. ) or California Air Resources Board (C.A.R.B) for the use on/off Public roads. Upon purchase, the buyer agrees to use products for racing (closed-course competition) only and NOT for on/off public roads.

If you need help with installation or troubleshooting, kindly use our Builder Locator to find builders near you. Builders are experts with motorized bicycles.