EVP TAPP Roller Primary Clutch Kit for Polaris RZR Pro R CHOOSE TAPP CALIBRATION:STOCK ECU + EVP ECU POWER FLASH STAGES 1-3 (2000 RPM) This Muffler uses and includes

This Muffler uses and includes the signature RPM

roll-down closure

so instead of deleting it we suggest replacing it for optimum running and peak performance

Key Features~

EVP TAPP Roller Primary Clutch Kit for Polaris RZR Pro R CHOOSE TAPP CALIBRATION:STOCK ECU + EVP ECU POWER FLASH STAGES 1-3 (2000 RPM) This Muffler uses and includesDESCRIPTION The TAPP Roller Spider replaces the button spider to reduce friction between the spider and movable sheave. Benefits include improved belt grip, lower belt temps, longer belt life, and smoother engagement. ROLLER SPIDER DESIGN: Less friction in the movable sheave for faster response. CENTER BEARING: New black nitrate coating for increased hardness, corrosion resistance, and reduced friction. LARGER ROLLER: Increased from 2mm to 3mm for