A Deep Look into the Significance and Symbolism of Fire in the Bible OPF GPF Back Milltek Sport Exhaust System For Audi RS3 Saloon Sedan 400PS 8Y. Experience the thrilling roar of the race with Milltek's Audi RS3 Saloon Sedan 400PS 8Y OPF GPF Back Milltek Sport Exhaust System This system is effortless to install. Choose from Resonated (quieter) (EC Approved) Or Non Resonated (louder) from the drop down Note: Stock levels can vary on this Exhaust System with Milltek so please contact us before purchasing if you would like to confirm the lead time. We offer a full installation service at our HQ in Swatragh, NI. Risper are an authorised Milltek Northern Ireland Dealer Please contact us for a fitting enquiry. Main Spec : Pipe Diameter 80mm 3. 15" Choose from a range of tips from the drop down menu Manufactured from High Grade 304L "Aircraft" Grade Stainless Steel