Quote:
Originally Posted by M3 Number 86
Just went catless on Friday and I did not do anything except tune the o2 for higher flow based on Alex@Alpine which tunes out the CEL. Nothing else was changed. At the track i was getting way higher top speeds for some reason so the car was either making more power or I was just getting better.
|
+1 I went this route as well since i was fine with the stock tune. with the alpine o2 tune your car can still pass the OBD2 tests
. very happy with the performance with just a drop in filter and test pipes.