For that amount, I would choose to spend it all on either the performance mods or appearance.
Performance wise, a CBE exhaust alone would probably use up all the funds. Aside from going with long tubes, like the Gen 3's, there really isn't a point going with an aftermarket intake. Buy some drop-in's and be done with it. Also, maybe upgrade the rotors and pads.
Aesthetic, I would spend it on a nice lip kit or lowering springs. I could also probably spend half of that cash on detailing supplies alone.
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[09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R]
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