Hi guys, i have a 96 200sx ser with a OBD-II ecu and i wanted to know where can i work on my ecu to eliminate the rev limit and the speed limit also, if the injection maps can be changed for ones more agressive.

I know that JWT does this, but are they the only ones? does a daughterboard works on OBD2?

Is there some1 fully recommended for this kind of work on this forum

Thanks