Piper performance cat bi-pass pipes are made from high quality T304 stainless steel and are covered by a lifetime warranty. Each cat bi-pass is designed to replace the factory OE fitted cat. They can be used in conjunction with a factory or performance exhaust system and will offer a good power gain of approx 5-10%. The car will rev a lot easier and benefit from an increased throttle response.
All cat bi-pass pipes come complete with a hole for the lamba probe and most can be bolted on or off the car in approx 10 mins.