It's a terrible idea. No company would ever sell you something that wasn't better for them than it is for you. when I sold cars we loved it when people bought them. We made a fortune on them. The are hardly ever used.
2011 6-Speed GT Convertible Premium, Ingot Silver, Brick Red/Cashmere Leather, Premier Trim W/Color Accent, Electronics Package, Security Package, HID Headlamps, Comfort Package, Brembo Brake Package and Rear Video Camera. FRPP air cleaner(K+N) and PROCAL re-tune.