The shifting with the predator is better than stock, but I have heard the SC trans work is better. The predator is no joke on power though, i dropped 4/10ths in the quarter just running the 87 perf tune. Truck runs much better. The 91 tune would kill the rear tires, and the 1-2 shift felt MUCH firmer. I'll keep playing with it and update you guys. Hope to have my 4.56 rear end soon and drag radials! Then I will really be able to tell what the tunes do for power and times.
Last edited by 916Timmy; 08-10-2011 at 02:39 PM.
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