For use with Stock or Modified 125cc shifter kart racing engines 

The BIG BORE silencer is designed with a larger internal core to move the power/torque curve to allow for quicker acceleration off the corners

Designed for long tracks (1.5-2.5 mile w/800' + striaghts)

3 - Tunable Back-Pressure Inserts

3" Dia. - 16" Length

Designed for easy silencer repacking

Stainless 1" ID Exhaust Inlet Dia. (can use with any RLV or RCE race pipe)

Extensive dyno testing