Engine

Feel the difference the moment you touch the throttle. This isn’t just a bolt-on part — it’s the missing link between your hand and horsepower. The...

Designed from the ground up, XPR manual cam chain tensioners help reduce friction and drag, giving your engine more horsepower with a freer feeling...

If you've ever wondered if the exhaust pipe on your 23-25 YZ 450 could melt the plastic OEM waterspout, we have engineered our own custom billet al...

External electric water pumps increase horsepower and cooling. In addition to cooling, there's a power character change. It provides a power increa...

Created by CP-Carillo, these piston kits are made to our exact specifications for higher compression. Features include a lightweight forged aluminu...

Developed by working closely with top-level professional race teams, and input from testing professionals like Kris Keefer at Keefer Inc. Testing. ...

2022 CRF 250R / RX Intake Cam (please expect 4-6 weeks) XPR custom intake cam for 2022 CRF 250 R This camshaft and spring kit is designed in-house ...

Intake only valve springs sold as a pair for 2017-2025 CRF 450 We have spent hours testing our valve springs to find the right amount of spring pre...

XPR high compression custom piston kit includes Piston, Rings, C Clips and a lightweight DLC piston pin, that reduces friction and wear. These ligh...

XPR high compression custom piston kit includes Piston, Rings, C Clips and a lightweight DLC piston pin, that reduces friction and wear. These ligh...

XPR high compression custom piston kit includes Piston, Rings, C Clips and a lightweight DLC piston pin, that reduces friction and wear. These ligh...

XPR high compression custom piston kit includes Piston, Rings, C Clips and a lightweight DLC piston pin, that reduces friction and wear. These ligh...

Designed from the ground up, XPR manual cam chain tensioners help reduce friction and drag, giving your engine more horsepower with a freer feeling...