traviswitt

I'm going nuts trying to find em. got a custom tune today.max power 314.81 and max torque 320.82, said pipes would add more hp. Its hard to find parts for the newer trucks, but i do know that i want 1 3/4 LT off road headers. any idea's

so is he telling me that it was pointless to put one on? It's the first I've ever heard of that. Anyway, I went to two different tuners, they're both $450, but one is gonna charge $200 for a licence fee. The one shop said it isn't gonna make that big of a change in hp. I know all you guys say a custom tune is where its at, so I'm trying to make a list of what I am looking to have tweeked so I know it's the right tune. AFM off, delay off, torque management, shift points, rev limiter. what about the timing advance and injectors? im in Phoenix, if anyone knows of a shop that does good work. I'm gonna look for info on Co2's. thanks!

thats what i needed to know, thanks!

when i cruise and the active fuel management kicks in, just the four cyl, the sound and the whole resinace changes. like back pressure futtering. i read that rocker arms have knoches in them to keep the valves closed on four of the cylinders, and that its controlled by a sillinoid. what are my options? thanks