The Scorpion Red Power Car Exhausts are packed with features... Specifications Include: Designed Specifically for the BMW M235i 2014 - 2016 Scorpion Car Exhaust De-Cat Turbo Downpipe includes the following components: De-cat downpipe Pipe Diameter - 100 mm (4") 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