Through our testing there is minimal increase in performance and does not outweigh the danger of overloading the system

Need new exhaust springs

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

For all Ski-Doo snowmobiles with TRA 2

Worried that your machine may already have this clutch

Whisper Biscuit / Big Mo Exhaust Mounting Hareware:Biscuit Only Through our testing there isNoise 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