Introducing the long awaited WSRD Polaris RZR Pro R Stock Injector ECU Flash! We have put our heads down and focused on producing as much horsepowe...

What's Included? DynoJet Power Vision (PV3) WSRD Stock Injector Calibrations Includes 91, 93 & 98+ Octane Fuels

Taking your stock Polaris RZR Turbo S to the next level! What's Included? DynoJet Power Vision (PV3) WSRD Stock Injector Calibration Includes 91,...

Taking your stock Polaris RZR XP Turbo to the next level! What's Included? DynoJet Power Vision (PV3) WSRD Stock Injector Calibrations Includes 9...

We are happy to announce the release of our Big Injector Package for all Polaris RZR Turbo models! The clientele that have field tested have absol...

This product listing is for clients who have already purchased a DynoJet Power Vision or for clients who are looking to purchase the DynoJet Licens...

This product listing is for clients who are looking to upgrade their Whalen Tune. This is NOT a product listing establishing tune files are $50 eac...

No more guessing! The Mityvac Pressure Pump is the perfect tool for adjusting crack pressure on your Can-Am X3, Ski-Doo or Polaris RZR! 

This spark plug is a factory spark plug heat range and replacement.  WSRD pre-gaps each spark plug for the ease of installation for the end user. I...

All of WSRD's E85 Tunes require an E70 minimum ethanol percentage/rating. This is the easiest way to verify your E85 quality!

KWI BLUE/ORANGE PRIMARY SPRING (PBL) - THIS IS THE KWI CAN-AM X3 PBL-OR PRIMARY SPRING DESIGNED FOR 300 RPM OVERSTOCK AND FLATTENS OUT THE SHIFT CU...

Monitoring AFRs is truly essential while tuning and DynoJet offers the perfect solution for your Can-Am UTVs, and Polaris UTVs. Vehicle Application...

A killer combination with the Keizer Wheels has always been the STU paddle configurations. These are our most popular paddles.  Sold as a pair ONLY...

CLICK HERE | KWI RZR CLUTCH KIT INSTALL KWI Clutching RZR Pro XP/Turbo S clutch kits will dramatically improve all-around performance, acceleration...

A killer combination with the Keizer Wheels has always been the STU & System 3paddle configurations. These are our most popular paddles.  Sol...

Keizer Racing Wheels bring another great, ultra light wheel option to the market! SOLD AS INDIVIDUAL WHEEL. PLEASE ADJUST QUANTITY ACCORINGLY.  Fea...

The TPR Breather Oil Cap replaces the factory oil fill cap.

Keizer Racing Wheels bring another great, ultra light wheel option to the market! SOLD AS INDIVIDUAL WHEEL. PLEASE ADJUST QUANTITY ACCORINGLY.  Fea...

The next generation of control coming soon!

The 1202 World's Best Belt has a taller side profile, allowing for more hookup on the clutches when compared to the stock belt. This is an upgraded...