this device is an absolute necessity during the upgrading process

Manifold Surface Temp(Spare if unused)

915" Piston # BC7915 - Custom

Helps with over rev and carries RPM's to prevent rpm fade

This allows you to target your engagement RPM

XP5 Helix Category_Default Category/SLED/Ski-Doo/Rev 600\/600 SDI this device is an absoluteXP5 Helix for Ski Doo 850 Turbo Sleds Custom Engineered Snowmobile Performance Helix Stop settling for generic parts. Our performance helix is a custom engineered solution developed specifically to fine tune your sled's clutch system, providing unparalleled power delivery for trail or mountain riding. The proprietary cut angle is meticulously crafted to ensure optimal RPM across your entire speed range, resulting in: Optimized Power Curve: Experience