I have an 01 Silverado 4.8 4x4 and want more power. The only modifications I have done are to put on a throttle body spacer and K&N "Snorkel"
I was looking at exhuast yesterday and the guy said "go with the programmer... it will give you more bang for your buck". I bought the HyperTech Power Programmer and am not overly impressed...I like the firm shift but the power seems about the same.
Any suggestions on programming?
Any suggestions on exhaust (I am thinking of Edelbrock headers, high flow cats and flowmaster duals)?