evallejo Posted November 13, 2007 Report Share Posted November 13, 2007 I don't have a Denali but as far as I know(correct me if I'm wrong) the drivetrain is the exact same as the SS (LQ9 AWD), so the answer to that would be a yes. Quote Link to comment Share on other sites More sharing options...
supraman Posted November 13, 2007 Report Share Posted November 13, 2007 I never noticed a gain with my LTs, but then again I never felt a SOTP improvement of any mod except pcmforless tune and radix. Quote Link to comment Share on other sites More sharing options...
dozlert Posted November 17, 2007 Report Share Posted November 17, 2007 I noticed more torque with JBAs on my Tahoe. I have LTs on my GTO...great improvement. I am thinking about doing the header/catback on the sierra denali. I don't normally like canned tunes. Unfortunately, I don't think there is a 4wd dyno w/tuner close to Omaha. Quote Link to comment Share on other sites More sharing options...
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