so far on my gp i cut my resonator and added flowmasters,changed out my plugs to autolite 103s and changed my thermostat to a 180 and replaced my stock air filter for a fram for the time being but have a intake filter i can still toss on...could i throw a 3.4 pulley on my car now without any problems? instead of flashing my pcm i want to take it to a shop that can modify it to what i have on my car at that point