Fitting a cat-back exhaust is a quick, easy and cost-effective way of releasing more power from your car?s engine. This is due to the standard restrictive system being replaced with a more free-flowing system with a larger bore. Features: Manufactured from T304 stainless steel 3? bore with 4.5? tailpipe Two piece, silenced system TIG welded, CNC machined flanges Supplied with removable bung Gaskets and bolts included