I am thinking of selling my 05 GXP Does anybody know what I should ask for it. Fair market value. It has Magnaflow cat back exhaust, CAI intake system, MGS hot tune, extended warranty to 60,000 or 2010 with 0 debuctable, I installed the factory NAV unit took out the 6 disc still have it and it work great. It has 27000 miles on it now. Ivory White with ebony interior (grey), have factory stuff still) Tinted windows, thinking of getting a GTO. Has anybody heard anthing bad bout them?