We are proud to release the new CTS Turbo 3.5" Stainless Steel race downpipe for the MK7 Golf R/8V Audi S3.  Unfortunately, the factory downpipe that comes as standard equipment in your car was designed for anything but performance.  The factory downpipe severely restricts exhaust flow and therefor has adverse effects on horsepower, especially once your car is "chipped".  The CTS Turbo downpipe will allow for your exhaust gases to flow smoothly, freeing up the additional ponies that you want, all while look amazing.  Highlights of our downpipe include CNC machined turbine discharge (downpipe) flange, mandrel bent 3" stainless steel tubing, modular design making installation of a catalytic converter simple and straight forward, smooth transitions allowing for optimal exhaust gas flow. Product Details: -T304 Seamless Stainless Steel tubing -T304 Stainless Steel flanges -100% TIG Welded -T304 Stainless Steel 02 bung -Torca Accuseal Stainless Steel Clamps -Great Sound even with factory exhaust, no drone!! Fitment: - 2015-2020 VW Golf AWD Alltrack/Sportwagen 4motion (including facelift) - 2015-2020 VW Golf R (including facelift) - 2015-2020 Audi A3 Quattro (including facelift) - 2015-2020 Audi S3 Quattro (including facelift) - 2015+ Audi TT/TTS Quattro To remove the CEL that will occur, proper tuning software must be used.