bluegt1987
Jr. Member
i know this has been covered a billion times but i am trying to get a list of stuff to help you fuel economy and what they cost post anything you know from k/n filters to 5.0l swaps)
k and n filter $20-50 %5-10 mpg
headers $100-500 %5-10 mpg
k and n filter $20-50 %5-10 mpg
headers $100-500 %5-10 mpg