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#221: 10-05-2012, 06:12 PM
Title: Duke
Rank: Premium Donator
Location: Tioga county ,NY
Car: 07 Pontiac Solstice GXP-14 BMW 535d xi
Posts: 2,492
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If you have this problem & you have no mechanical issues. IMO, look in to get a aftermarket tune. From one of are vendors here. The only thing you got to lose is your warrant.
My stock tune didn't have this problem, but was no means smooth. Then bought a APv2. Ran Cobb stage1 93 map. Was better power & a little smoother. I'm stage 2+, Running, Custom 1mm stage 2 map from Mike @ Tuning Alliance. The power start coming on about 2500rpm @ 12psi & hitting almost 17psi @ 2800rpm, peaking at 18.5 psi. @ around 4500rpm. The motor revs. smoothly all the way to red line. Where boost tapers down to 13psi. On top of that, I avg. 24mpg.