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. Manufactured from 304L aircraft grade stainless steel, these systems are built to withstand harsh conditions. All products are made in the UK and distributed to over 90 countries worldwide. - Direct replacement for the original exhaust system - Available in multiple configurations for sound and tone customization - Constructed from 304L aircraft grade stainless steel - Made 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 - MSAU491: Polished GT (round) 100 Exhaust Tip - MSAU491 - MSAU544: Downpipe (Tiptronic) - MSAU544 Vehicle Compatibility: - 2008-2011 Audi A4 2.0 TFSI S line B8 (2WD and quattro Tiptronic-only) Saloon & Avant - 2008-2012 Audi A5 Coupe S line 2.0 TFSI 2WD and quattro S tronic