Brian Crower 2021+ Polaris Pro R Stage 2 Duner Camshafts (Set Of 2)

Brian Crower is well-known for making strong internal engine components, and these Stage 2 Duner Camshafts are a prime example of their work for the 2021 and newer Polaris Pro R. If you're looking to get more out of your Pro R's engine, especially for dune riding or open-terrain performance, this set of two camshafts is designed to improve its breathing and power delivery.

These camshafts are specifically designed as a Stage 2 upgrade, meaning they offer a noticeable bump in performance over stock without requiring extensive modifications to other engine parts. The 'Duner' designation suggests they are optimized for the kind of high-RPM, sustained load conditions you'd encounter in sand dunes or wide-open spaces. This translates to better throttle response and more pulling power when you need it most. Brian Crower uses their experience to create profiles that work well with the Pro R's existing engine setup, aiming for improved performance while maintaining reliability for spirited use.

When installing these camshafts, it's important to follow the manufacturer's recommended procedures carefully. This often involves ensuring proper valve spring compatibility and checking piston-to-valve clearance, especially with performance camshafts. While these camshafts are designed to be a direct replacement for the stock units, it's always a good idea to consult the Brian Crower installation guide for any specific details or tool requirements. Please note that these camshafts are not CARB approved and cannot be shipped to California.