| on the stock tune, didnt notice much more power if any except faster spool up and was able to hold overdrive without downshifting sooner. I guess that is from the faster spool. Now with a basic tow tune, the truck runs better, but havent tried with or without it to tell you the difference with this tune I think it was worth it and would definately do it again.
__________________ 01' Silverado 2500HD CC 4x4 stock straight pipe w/ tow tune
03' Corvette Z06 850whp :-) built and blown |