What do you think is the "smartest" mod?
I want to know what you guys thing is the smartest mod for your car. The mod that cost the least, and does the most. i.e. grille dam, block heater, etc
EDIT: Smartest mod, not adjusting the nut. I guess this part of my original post got deleted.
Last edited by MadisonMPG; 12-06-2009 at 10:30 PM..
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