Engine Performance Package Description:
Here at Pro Circuit, we've earned our reputation as a premier engine builder through hard work and commitment to only offer our customers the finest performance parts available. We continue that tradition with our new Performance Engine Package for the new 2021-2022 Honda CRF450R/RX. This all new package consists of our high-compression piston kit, camshaft and valve springs. Each part has been designed and tested to complement each other for significant engine performance gain at all RPM levels.
High-Compression Piston Kit
Manufactured by JE Pistons to our exact specifications using the most advanced technologies available, our Pro Circuit High-Compression Piston Kit for the 2021-2022 CRF450R/RX provides a significant boost in low-end torque and high RPM performance.
Our newest camshaft design for the '21-22 CRF450R/RX has been designed for superior performance over the OEM cam by optimizing the valve lift profile. Used with our Pro Circuit Valve Springs will ensure a valve train free of dynamic bounce.
Pro Circuit Valve Springs allow your engine to run at a higher RPM without loss of valve control.
Note: Performance Engine Package components cannot be sold individually.