Installed the stage 3 on my 2002…
Installed the stage 3 on my 2002 Silverado. I drove about 20 miles and really started to feel the difference. I waited until 150 miles to fully test. I brought my truck to the local dyno and had some astonishing results! 47HP on the dyno and now I get 22 MPG on my 5.3! 100% Recommended!