Your rev limiter is there for a reason, leave it alone unless you engine has been worked to utilize more engine revolution. For that you need better internals and bearings
been using it for more than a year now... Trust me when i say.. u don't need it really... You will get bored of it after a few days.. It won't fark your engine, it usually depends on how often and how hard you use it.. If u set Gain to F and at low rpm's.. then you are asking for trouble..
my car mileage currently is 130K ++, for the past few weeks, my car have been experiencing jerks between changing gears(auto), it feels more like it is hesitate to change.Anyone experience this before ?