The Scorpion Red Power Car Exhausts are packed with features... Specifications Include: Designed Specifically for the Audi TT RS MK3 (Non-GPF Model) 2017 - 2018 Cat-Back System (Resonated) (No Valves) Black Includes the following components: Resonated centre section Link pipe Rear silencer L/H non-valved trim connecting pipe R/H non-valved trim connecting pipe L/H and R/H inner trim connecting pipe Black ceramic coated Evo trim Fitting kit Pipe Diameter - 80 mm (3.15") Fits To - OEM & Scorpion systems Red Power - Built to stir your soul! Warranty - All Scorpion exhausts come with a lifetime warranty British Manufactured - All Scorpion exhausts are hand crafted by Scorpion automotive engineers in Derbyshire, UK Fittings/Instructions - All Scorpion products are supplied with everything needed to fit and ride, along with parts drawings and picture instructions where necessary PLEASE NOTE: Fits Non-GPF Model Audi TT RS MK3 2017 - 2021