Quiet Core CRF450R Direct replacement head pipe designed

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

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

Trusted by Top AMA ATV Pros:

Any application with no sound limit

Engine holder

Quiet Core CRF450R Direct replacement head pipe designedReduce 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