I am sure it wouldn't hurt but FIRST get better tires, the stock tires on the NA suck. There are several options, the Bridgestone's The Goodyear D3's or even the new Nitto Invo, these are only about $160 each they will be my next tire on my GXP.
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Red Bull Drift Team 2008
Solo Mach and High Flow Cat
Dejon Intercooler, Intake Elbow, BOV spring
Wester's Garage RACE tune II
JPM custom shifter.
Barney Juice with Militec-1
GM Auto-dimming mirror with OnStar and maplights
Rhys Millen Racing, RMR Style Bar.
Peak RWHP 286.3, Peak Torque 313 ft/lbs.
SSR Type C wheels, Bridgestone Potenza RE-01's
DDM Works PINK Breastplate
NASSOA In Great Company! Founding Member