Cat-Back systems are designed as direct replacements for the original exhaust, offering improved sound and aesthetics. Multiple configurations are available, allowing owners 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 customization - Constructed from 304L aircraft grade stainless steel - Made in the UK and distributed globally Specifications: - Pipe Diameter: 70.00 - Installation Time: 2 to 2.5 hours (including removal of OE system) - Race Product: No - EMarked: Yes - EMark Number: RS4RS5OPF Kit comes with: - Electronic Valve Motors - ACTUATOR01 - RH Lower Downpipe - MSAU724 - Front Silencer - MSAU726 - Centre Silencer - MSAU727 - LH Lower Downpipe - MSAU739 - LHR ear Silencer (ECE) Valved - MSAU740 - RH Rear Silencer (ECE) Valved - MSAU741 - Polished Jet (oval) 170 x 107 Exhaust Tip, LH - MSTIP246 - Polished Jet (oval) 170 x 107 Exhaust Tip, RH - MSTIP247 Vehicle Compatibility: - Audi RS5 B9 2.9 V6 Turbo Sportback (OPF/GPF Models) 2019 and Later