prochip is the early version of unichip...will do the job fine on a mild rex (ie a/m turbo, fmic, zorst etc)...will do as good a job as a unichip will as the boards pretty much haven't changed...if you decide on going bigger injectors etc then a full replacement ecu would be the go instead of the piggyback prochip...

see psi performance or tim slakos for installation & or tuning...