Chevy Avalanche Performance Chips

Thus far, there has been absolutely ZERO discernible difference in the overall performance of my truck. I have a 5.3 lm7 with a 4" cold air intake, cat back 3" exhaust, and a small cam. I was running a little rich on the bottom, and a little lean on top end. The ONLY thing this module has done so far is drop fuel intake on cold startups. I have checked with my bank readings with my odb2 6 days in a row, before a startup, after a 5 min run, and after running her for a couple of hours. My mileage is the same or worse, and there is again, ZERO noticeable difference in performance. It looks good, and was easy to install, but I'm pretty sure I could have saved the money and just wired a resistor inline. Read more Jet Performance Power Control Module customer reviews.