new generation 2007 sierra std cab
#3
RE: new generation 2007 sierra std cab
If you don't wanna change the internals I suggest an STS Turbo system. At 5 pounds of boost you're up to 400+ horse with a 5.3L. You also get away from insane temps under the hood.
www.ststurbo.com
www.ststurbo.com
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