Just wanted to see what the opinions were out there on this issue...I just purchased a 2003 DSG Cobra Vert...16K miles...and BONE stock. No mods at all, still has the OE paper air filter, stock pulley, even has the OE battery still in it! Original tires still on it in great shape! Nothing but oil and filter changes. I would love to start modding the heck out of this car, but she is just too damn perfect for that! I know that just adding a CAI, exhaust, and tune will give me unbelievable gains...but just hate to touch this one. I previously have had 20 plus mustangs before this...all of them had stuff done to them...recently had a 03 Mach 1 that was cammed and over 400 hp with tons of other mods. This one has me wanting to think twice before adding to it...am I crazy not to touch it? I love it the way it sits...but know I would love more power and a few custom things done to it. Would I be ruining the value of the car much, since this one is bone stock. I would not have posted this if I had bought a slightly modded car already...