Greddy Revolution RS Muffler | 11001130 Testing Decreasing the overall rotational mass

Decreasing the overall rotational mass while maintaining a safe presence can increase reliability and engine revs

5 WRX EJ255 & 2

Now you can accurately monitor your boost as you modify your ride

For a set of four

Greddy Revolution RS Muffler | 11001130 Testing Decreasing the overall rotational massGReddy Universal Revolution RS Muffler and Tip set creates options for custom (single or dual muffler) applications as well as for vehicles not covered by the current line up. Our signature high quality, straight through, universal racing sport mufflers offer exceptional flow with a clean, aggressive exhaust note. The compact 304 stainless steel mufflers feature our improved internal construction with long lasting, high temperature resistant sound