Designed to be used with the stock exhaust system to offer
a power increase while allowing your muffler to pass the 96
dBA 20" stationary test
Note: This accessory affects emissions; installation on EPA-regulated 2006 or later WR models constitutes unlawful tampering except when used solely for closed-course
competition. YZ models are for closed-course use regardless of modification.
Note: This performance accessory does not meet California standard for off-road recreational vehicle usage regardless of model year.
