We have a few hundred of our revised catted downpipe on the market and many customers have reported a CEL free experience.
In regards to the supposed fitment issues mentioned by a few haters, do you individuals have first hand experience with fitment of our products or are you simply parroting a few of our competitors?
Every popular vendor on these forums carries our parts and they'll be the first to tell you that there isn't a current fitment issue with our downpipes. It's true that a small batch of our F30 catted downpipe suffered from an incorrectly placed o2 sensor bung but that issue has been resolved for over a year and a half now.
We offer a lifetime guarantee against fitment and defects and I can personally confirm and guarantee that our downpipes for this platform will fit without an issue
