I got the Newer style 9xxx Predator U7193 for a 2005 Silverado 4x4 with the 5.3l, a S&B CAI, Throttle body spacer, Transmission servo. I also have gutted cats and 12" cherrybomb glasspacks. My check engine light stays on all the time so i would need that cut off. I have been thinking about a 3000 ...