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. - Direct replacement for the original exhaust system - Available in multiple configurations for sound and tone adjustment - Manufactured from 304L aircraft grade stainless steel - Designed for a wide range of vehicles Specifications: - Pipe Diameter: 63.50 - Race Product: No - EMarked: No Kit comes with: - Downpipe (6 speed) - MSAU257 - Y Pipe - MSAU258 - LH Centre Section - MSAU259 - RH Centre Section - MSAU260 - LH Rear Silencer - MSAU261 - RH Rear Silencer - MSAU262 - Polished Jet (round) 100 Exhaust Tip - MSAU298 Vehicle Compatibility: - 2005-2008 Audi A4 1.8T B7 quattro Saloon - Avant