Top 9 Useless Performance Add-ons
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Top 9 Useless Performance Add-ons
Popular Mechanics (specifically Sam Abuelsamid, of Autoblog) put out this nice article. Are those "performance mods" really helping your car perform?
http://www.popularmechanics.com/cars/how-t...-ons&kw=ist
http://www.popularmechanics.com/cars/how-t...-ons&kw=ist