2008 Silverado 2500HD
Okay, So I am pretty damn sure my transmission is built. Ive ran the PPE level 5 tune for the last 2 months and have romped on it in 5th more than a few times, and still holds strong. So the PPE tune runs pretty good, and I just ordered sleeves so I can take it to the track in 4wd. Anyways, I like the way the tune runs, it definatly needs more fuel in the top end so Im throwing the lift pump back on, but I was wondering if any EFI tuners can make tunes that will run me faster in the top end? What are some of you running as far as quarter mile times with stock injectors/turbo and whos tuning/ what tuner do you run?