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Blower? It will accentuated the GT500 appearance. Really all you need is intake/tune, good air and drag radials, but people have done it with stock tires. Plus lots of practice.
I pulled a 13.2@106 with just a CAI/Tuner on stock 18's with 3.55. I just picked up a set of 17 inch drag radials and pulleys so I'm pretty confident with those new upgrades I'll dip 12's.