Description Reviews As more performance parts come out for the N14 and N18, one of the things you need is a catless downpipe to run the boost you want with a tune. Milltek has been in the game for a long time and has come out with version 2 of their downpipe. The turbo mating surface is now cast and machined to a high tolerance for perfect fitment. The rest of the downpipe is robotically welded to ensure quality on every weld. The pipe is stainless steel and mandrel bent to maintain the large 2.5 DIA bore of the pipe. Milltek says you will get a 27bhp gain, but that can go up with a good tune. Great flow, good fitment, and a low price! All winning features in this downpipe. We also have a version with a cat for states that require it. You may get a check engine light unless the car has a tune. Note: Not legal for on road use or use in California. For off road use only. Specs: Stainless Steel Mandrel Bent Robotically Welded Pipe DIA of 2.50" (63.50mm) 9 Reviews 5 Down pipe Posted by Joshua Miller on 23rd Feb 2024 Perfect fit, no issues! 5 Works great Posted by Asher on 22nd Jan 2024 Less restrictive airflow. 5 Milltek Catless Downpipe Posted by Chris on 15th Aug 2023 Direct fit for my r60, great airflow, good sound, 5 min install (as long as you don't have seized bolts slowing removal of old components). 5 Catless down pipe Posted by Joseph on 2nd Jan 2023 The best customer service I have ever seen , as a consumer 5 Awesome downpipe at a great price! Posted by Luke on 13th Sep 2022 This downpipe is high quality and at a very good price. It also fits perfectly with the stock exhaust as well as the Milltek catback system. Removing the cat also sounds awesome and unleashes the exhaust pops! I recommend getting a new gasket for between the turbo and top of this downpipe though. 5 Milltek DP Posted by Jarrett on 5th Feb 2022 Great product, perfect fit! Fastest shipping in the US! 5 Super awesome pops, noticeable horsepower gainn Posted by Cole Ferguson on 21st Jun 2021 Pretty easy to put in. Fit perfectly awesome rumbling pops in sport mode. It will throw an O2 sensor code so definitely get tuned. 4 Good fit. Posted by Chris on 20th Jul 2020 This downpipe fit directly into my 2011 r55. Shipping was incredibly quick. All around good service, I will be shopping here again. 5 Milltek de-catted dwnpipeo Posted by Dale on 4th Jun 2020 Great product. Awesome service. I bought it in the late afternoon and they had a shipping confirmation 45 mins later!!!! It was packaged well and arrived in perfect shape. What more could you ask for????