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 a more aggressive tone. 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 requirements. All products are made in the UK and distributed to over 90 countries worldwide. - Direct replacement for the original exhaust system - Multiple configurations for sound and tone adjustment - Constructed from 304L aircraft-grade stainless steel - Manufactured in the UK and distributed globally Specifications: - Pipe Diameter: 70.00 - Race Product: No - EMarked: Yes - EMark Number: AUDIA4B8 Kit comes with: - MSAU487: Centre Silencer - MSAU487 - MSAU488: Y Pipe - MSAU488 - MSAU489: LH Rear Silencer Assembly - MSAU489 - MSAU490: RH Rear Silencer Assembly - MSAU490 - MSAU492: Polished GT (round) 80 Exhaust Tip, LH Twin Tip - MSAU492 - MSAU493: Polished GT (round) 80 Exhaust Tip, RH Twin Tip - MSAU493 - MSAU496: Downpipe - MSAU496 Vehicle Compatibility: - 2008-2011 Audi A4 2.0 TFSI S line B8 (2WD and quattro manual-only) Saloon & Avant