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 range is continually developed to meet the demands of a wide variety of vehicles. - Direct replacement for the original exhaust system - Available in multiple configurations for sound customization - Constructed from 304L aircraft grade stainless steel - Designed and manufactured in the UK Specifications: - Pipe Diameter: 70.00 - Installation Time: 2 to 2.5 hours (including removal of OE system) - Race Product: No - EMarked: No Kit comes with: - RH Lower Downpipe - MSAU724 - Front Silencer Delete Pipe - MSAU726REP - LH Rear Silencer (ECE) Valved - MSAU730 - RH Rear Silencer (ECE) Valved - MSAU731 - LH Lower Downpipe - MSAU739 - Brushed Titanium Jet (Oval) 170 x 107 Exhaust Tip - MSTIP259 - Brushed Titanium Jet (Oval) 170 x 107 Exhaust Tip - MSTIP260 - Electronic Valve Motors - ACTUATOR01 - Centre Silencer Delete Pipe - MSAU727REP Vehicle Compatibility: - Audi RS4 B9 2.9 V6 Turbo Avant (OPF/GPF Models) 2019 and later