Hey guys i was thinking of trading in my 09 G8 Gt with 14,000 miles on it. I bought it brand new in 09 but i just dont drive it much at all. My question is this I have modded the car with the exhaust with American Racing headers with hi-flow cats and corsa muffs in the back and cold air intake and car has been tunned. Do you think I would have trouble with trade in value because of this?? Or should I just put it all back to stalk and then do it? The car is in Flawless condition inside and out has never seen rain or snow I spend more time cleaning it then I do driving it. So was wondering what you guys think or if anyone has traded in a modded car and how they were treated