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 and a more aggressive tone if preferred. All products are manufactured from 304L 'Aircraft' Grade stainless steel, ensuring durability in harsh conditions. The performance exhaust systems are developed for a wide range of vehicles, with ongoing research and development to meet performance exhaust requirements. - Direct replacement for the original exhaust system - Available in multiple configurations for sound and tone customization - Manufactured from 304L 'Aircraft' Grade stainless steel - Made in the UK and distributed to over 90 countries Specifications: - Pipe Diameter: 76.20 - Fitment Time: 1 to 1.5 hours (including removing OE system) - Race Product: No - EMarked: No Kit comes with: - Front Silencer Delete Pipe - MSAU715REP - Hollowtek Rear Silencer - Valved with no motors - MSAU716 - Cerakote Black Jet (oval) 170 x 107 Exhaust Tip, LH - MSTIP242 - Cerakote Black Jet (oval) 170 x 107 Exhaust Tip, RH - MSTIP243 Vehicle Compatibility: - 2016 and later Audi TT Mk3 TTRS 2.5TFSI Quattro (Non-OPF/GPF Models) - 2019 and later Audi TT Mk3 TTRS 2.5TFSI Quattro (OPF/GPF Models)