| Some say that level 4 and up might be too much for a stock tranny (most likely true), but I also am running on this level for sometime now w/ no tranny mods. So far so good, but I try to avoid boosted launch. Give your tranny sometime to relearn and put it on fast learn mode. When I'm relearning my tranny I drive aggresively and try to run it at different types of roads.
__________________ 08 Sierra WT CC SB
Steel Gray 4x4 PPE RACE
Modded OEM AirBox/PCV Reroute/4" MBRP into 5" MagnaFlow/ EGR BLOCKED
Isspro EGT/Boost gauges Cognito Leveling Kit/HD Tie Rods  Pitman/Idler Support Brackets/Bilsteins
Pirelli Scorpion ATR 265/75/16 Coated OEM Wheels
Factory Oval Steps/Rhino Lining
Klein Air Horns (4)/ViaAir 150 psi 2g compressor    |