June 23, 2005 11:08 AM Subscribe
Are the fancy aftermarket chips for your new truck too good to be true?
A friend is buying a new diesel truck and is very excited about adding an aftermarket computer chip. Others are claiming increased power and gas mileage (to the tune of 6 miles per gallon). If this is for real, why don't the manufacturers install them in the factory? I'm sure they'd love to advertise such a dramatice mileage increase.