It's a 2002 automatic, 4WD, 3500. I've installed 275 injectors, a K&N airfliter in the stock box, a 4" ATS exhaust and a transgo shift kit. Also pyro, boost, trans temp and fuel pressure gauges.
On PDR's site they recommend a PDR 40 for over 350 hp. I believe with the TST box on high levels I...