The Cat-Back systems are designed as direct replacements for the original exhaust, offering improved sound and aesthetics. Multiple configurations are available, allowing the owner to select the desired increase in exhaust volume or achieve a more aggressive tone. Manufactured from 304L aircraft grade stainless steel, these systems are built to withstand harsh conditions. All products are made in the UK and distributed globally. - Direct replacement for the original exhaust system - Available in multiple configurations for sound and tone adjustment - Constructed from 304L aircraft grade stainless steel - Made in the UK and distributed worldwide Specifications: - Pipe Diameter: 69.85 - Installation Time: 1.5 to 2 hours (including removal of OE system) - Fitting Notes: +0.5 to 0.8 for valance fitting - Race Product: No Kit comes with: - Connecting Pipe - MSAU331 - Rear Section - MSAU333 - Polished GT (round) 100 Exhaust Tip, LH - MSAU478 - Polished GT (round) 100 Exhaust Tip, RH - MSAU479 Vehicle Compatibility: - 2006-late 2011 Audi TT Mk2 2.0 TFSi 2WD