The Scorpion Red Power Car Exhausts are packed with features... Specifications Include: Designed specifically for the Audi TT MK1 225BHP Quattro 1998 - 2005 Turbo-Downpipe with High Flow Sports Catalyst - Includes the following components: Audi TT MK1 225 Quattro 98-05 Turbo pipe Front pipe with a high flow sports catalyst Fitting kit Pipe Diameter - 76 mm (3") Fits To - OEM & Scorpion systems Red Power - Built to stir your soul! British Manufactured - All Scorpion exhausts are hand crafted by Scorpion automotive engineers in Derbyshire, UK Guarantee - All Scorpion exhausts come with a lifetime warranty, apart from high flow sports catalysts which come with a 2 year warranty Fittings/Instructions - All Scorpion products are supplied with everything needed to fit and drive, along with parts drawings and picture instruction where necessary