Originally Posted by Raptor251
I ended up with this same set up on my last M and it was amazing. As for the CEL I had the dealer flash the car with the Dinan catless tune to avoid warranty issues
Interesting. My problem is, my dealer that I like and services my car doesn't sell DINAN. There is another dealer fairly close, but they don't seem to want to guarantee the DINAN tune and rubbed me the wrong way.