The Cat-Back systems are designed as direct replacements for the original exhaust, offering improvements in 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 to ensure durability in harsh conditions. The range covers an expanding selection of vehicles, with ongoing research and development to meet performance exhaust requirements. - Direct replacement for the original system - Available in multiple configurations for sound and tone - Manufactured from 304L aircraft grade stainless steel - Designed and made in the UK Specifications: - Pipe Diameter: 63.50 - Race Product: No - EMarked: No Kit comes with: - Y Pipe - MSAU258 - LH Centre Section - MSAU259 - RH Centre Section - MSAU260 - LH Rear Silencer - MSAU261 - RH Rear Silencer - MSAU262 - Large-bore Downpipe - MSAU297 - Polished Jet (round) 100 Exhaust Tip - MSAU298 Vehicle Compatibility: - 2005-2008 Audi A4 2.0 TFSI B7 quattro and DTM