well i have a svt focus before this that was highly modded and was run a lot for auto-x's so i know the basics but never delt with a boosted car before. to be honest the whole reason i bought this car was for the handling so i doubt i will be touching that anytime soon. My understandign always was unless the dealer cna prove that your moddification directly caused the problem they cant void the warranty is that not correct? As for running in the snow hell no!! this car will be covred up in the winter and only be used on a must use. this wont be driven every day cause as a stay at home dad im not bringing to small children int he car anywere for them to throw food around and ruin it. i twill be my take a spin int he afternoon and go for a group drive kind of car. as of right now the car seems fast as balls andyway so i doubt i will feel the need to mod but then again i said that before onmy other cars