
Originally Posted by
parker
Do not follow his modding lead. Look around on this site for more advice. First off...DO NOT get a hypertech! Get ahold of Nelson or blackbear for a good mail order tune. A good free flowing exhaust. Really no need to get mad wires unless you just want to spend the money. You can make your own cai.
And of course the tb coolant bypass is a good free mod to help keep iat's down. Do some searching before you start buyin mods. You'll save yourself alot of money and self asskickings in the future

How do you do this? I've never heard anyone say anything about this before...
2003 SIERRA- 5.3 DD
1985 SWB C10- slow, future plans- shaved, painted, 6.0/4l80e