Originally Posted by FogCityM3
Mike Benvo did the freezeframe during coding and I hit over 8700 rpm stock, and soon after I had my differential bolt snap and diff nearly fell out of the car, someone from BMW NA looked at the car, looked at the ECU (had ESS tune at the time with stock rev limit and I flashed back to stock), saw zero issues and covered under warranty. Bottom line is I don't think the rev limit (stock or otherwise) is a huge deal in terms of warranty coverage within certain allowances. Ask Dinan, ESS, Evolve, BPM how many warranty issues they've encountered with customers with something not being covered.
The stock limiter is on my car and coding recorded a top RPM of 8600. It happens mostly on down shifts during very aggressive driving. Time stamp confirmed it happened before I bought it.