FEATURES
The Quiet Core is an insert made of 201 Stainless Steel and installs on most exhausts in seconds
It’s designed for sound sensitive riding areas and decreases the sound level approximately 3-6dB
Notes: Do not use with street bike exhausts. Performance recommends re-jetting the exhaust whenever a Quiet Core is installed. Failure to do so can lead to several problems and can damage the exhaust and void the warranty. The Quiet Core will not work with the Ecosystem or Quiet Race Series Exhaust because those models have mechanical cores with no room to fit the Quiet Core into the exhaust. You cannot use the Torque Range Modifier with a Quiet Core at the same time, only one can occupy the Exhaust space.