Originally Posted by flipm3
From my personal experience on my 100% catless E46 M3 with the same catless O2 ready tune, I have not pulled any codes, CEL, or post-cat O2 insufficiency errors in over 1000 miles.
I have checked codes using the evolve-R, Peake, Autologic, and INPA.
All my sensors remain in steady state with my off-road exhaust setup.
With my street legal high flow cats, I also remainder in 100% readiness state.
Thanks. Looks like I'll be pulling the trigger on this soon.