I used to have an SRT8 grand cherokee, and was sold saturday`s afternoon, I`m recieving a 2008 sierra denali 6.2 fully loaded, hope I can make it run almost as hard as my jeep, my jeep used to run 13.84 bone stock, GM`s are more friendly to aftermarket performance parts, I`m almost sure that with your help, advices and experience I can make it run hard, hope everybody have a nice week
Timo