The Scorpion Red Power Car Exhausts are packed with features... Specifications Include: Designed Specifically for the Audi RS3 8V 2015 - 2017 Secondary De-Cat Section includes the following components: L/H secondary de-cat section R/H secondary de-cat section Pipe Diameter - 70 mm (2.75") 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: Engine management light may be activated, Stage 2 ECU remap recommended