2003SS B.B. Posted March 22, 2005 Report Share Posted March 22, 2005 Novice in performance upgrades so I need some guidance. I have a stock 03 SS Silverado (except for cat back exhaust). Will I benefit from a PCM upgrade? What can I expect to see from the upgrade? What other components should I install with the PCM upgrade? How much will I spend. (I need POWER, not a divorce.) Next instal planned is a Volant Air Intake (and possibly the PCM.) Any assistance would be greatly appreciated. Thanks! Quote Link to comment Share on other sites More sharing options...
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