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So I just had my 16 GT PP dyno'd on a Dynojet with my Lund Flex Fuel tune after switching from a regular Lund tune and am pretty disappointed. Best run was 411.93 whp and 365.76wtq. Mods are JLT CAI, SW LTH w/cats, Borla CB and the Lund FF Tune. Seems quite low compared to what I've seen on...

Not sure if this has been discussed in another thread, but please kindly point me in that direction if so. Recently had my SW 1 7/8 LT's installed on my PP GT 6spd. Had it dyno tuned (made 406rwhp :headbang:) but now I'm pulling codes P2004 and P2011. Something to do with Intake Manifold Runner...

Greetings, Got my GT PP on Oct 8 and have loved it so far. Put my Borla S Type 3" system on a few days later with the plan to put on my Stainless Works 1 7/8 LT's later. Now I've got my car in the shop getting all my goodies put on but my tuner calls me this morning and says that fitment...

New to the forum so perhaps this is already in a previous thread, and if so please point me in that direction, but are there any downsides to installing headers on the 15/16 GTs? Just ordered my 16 GT PP a few weeks ago and I know what catback and header setup I want, but don't know if I want...