Produktinformationen "Milltek SSXAU253 Cat-back - Audi TT Mk2 TT RS Roadster 2.5-litre TFSI quattro (2009 - 2014)"
Racing Cat-back: Non-resonated (louder). No ECU tuning required? uses OE Tips and includes Active Exhaust Valve (works with Sport button to release extra sound when required)