Downpipe kit with 200CPI Racing catalyst for VAG 1,8-2,0TSI (132KW - 206KW) models with FWD made of high quality cast stainless steel 1.4301 (SS304) diameter before and after catalyst Ø76mm Metal catalytic converter 200CPI EU6 Racing 100% perfect fit, replaces OEM less heat load on the turbocharger more power by reducing back pressure much more torque including reduction to stock exhaust system Fits plug and play for the following vehicles: Audi A3 8V 1.8 TSI 132KW/180PS (not for QUATTRO models) Seat Leon III ST 1.8 TSI 132KW/180PS Seat Leon III Cupra / R 2.0 TSI 195KW/265PS - 228KW/310PS (not for AWD) Skoda Octavia III 1.8 TSI 132KW/180PS Skoda Octavia III RS 2.0 TSI 162KW/220PS VW Golf VII GTI 2.0 TSI 162KW/220PS - 195KW/265PS