21503310 Kooks X-Pipe with Green High Performance Cats - C5 Corvette. Add this X-Pipe to your Kooks Header Purchase. This X-Pipe has Kooks Famous 3" Green High Performance Cats and is intended for Street use where allowed by law. X-Pipe is a full 3". Will not hook up to 2.5" Factory over the Axle Pipe (mufflers). Mate with Kooks Long Tube Headers.
Fitment: C5 Corvette and Z06 (1997 - 2004)
Product Note: Requires and aftermarket 3" Axle Back (Muffler Section) Will not hook up to 2.5" Factory or Aftermarket exhaust