Huge acceleration and track speed gains

we have been seeing the same charge temp air as external air temps

Our header went through many stages of development to provide maximum air flow whether you're running a stock or modified motor

For all Ski-Doo snowmobiles with TRA 2

This muffler is light and loud

Whisper Biscuit / Big Mo Exhaust Mounting Hareware:Biscuit Only Huge acceleration and track speedNoise reducing disc for Big Mo Exhaust systems Helps reduce DBs on the trail Fits all our Big Mo's, and the X3 and YXZ Full Systems Compatible with our 90 Degree turn outs HERE Compatible with Spark Arrestor HERE Maintain back pressure on N A's with stock tunes Achieves semi anechoic, physical acoustic attenuation through rigid body absorption causing the suppression of longitudinal waves by precise, transverse conversion. THE WHISPER BISCUIT IS MADE