Better mid-range power and over rev

Louder than stock for performance gain

stronger mid-range and longer top-end

Our BMP muffler fits great and sounds great

We offer various levels of tuning to best suite your needs

Torsional Conversion Kit / Diamond Drive Category_Default Category/MERCH/MISC STUFF Better mid-range power and overIf you own an Arctic Cat Snowmobile with a Diamond Drive, you have one big problem. The stock driven clutch uses a compression spring that coil binds and doesnt allow the clutches to shift into overdrive. This causes a major lack in top speed, excessive belt heat from slippage, and lack of performance. The good news is we have the fix here at BMP. Whether you are in the mountains on a M sled, flat lander on a Crossfire, F Sled or a Firecat, BMP can