MPG???
My opinion on improving MPGs is that if it was as simple as an "add-ons" like dual exhaust, different air filter, etc, the manufactor would have already done it.
the pressure that manufactors are under to increase efficiency is crazy. Just look at what Ford has done by going all aluminum body, and overall engine design, this had to cost $$$$$$ like crazy. Don't you think that if a $$ different air filter or different exhaust would have paid dividends in MPGs they would have done it.
the pressure that manufactors are under to increase efficiency is crazy. Just look at what Ford has done by going all aluminum body, and overall engine design, this had to cost $$$$$$ like crazy. Don't you think that if a $$ different air filter or different exhaust would have paid dividends in MPGs they would have done it.










