Quiet Core CRF450R Any application with no sound

Any application with no sound limit

Direct replacement head pipe designed to unleash your engine's true potential

Must transfer all OEM parts from a KTM throttle body and modify wiring harness and throttle cable

The ultimate MC 350F system awaits—Ready to feel the difference

Engine holder

Quiet Core CRF450R Any application with no soundReduce noise with ease! Effortlessly install the Quiet Core insert in just 5 seconds and experience a significant drop in sound levels. Quick install and release in 5 seconds Drop sound significantly Small 1. 5'' outlet Some lose of bottom end power and throttle response Retain open pipe power from 7500 rpm up on most applications Available with an optional spark arrestor type mesh