![Red High Engagement Primary Spring | 2020+ Pro XP | 2021+ Turbo S](http://dirtmonkeyperformance.com/cdn/shop/products/RZRHighEngageSpring_131ec258-f8b3-4c01-b574-0568daf8484a_{width}x.jpg?v=1640664742)
The WSRD High Engagement Spring for the Polaris RZR is designed to be used with the WSRD|DynoJet Launch Control Module. The WSRD Launch Control Module is configured with the standard 2200RPM setting while the red spring is designed for 2500-2600 RPM engagement which makes for a proper installation.