hello all. i saw on another topic that a member reported that with the ebay header his mileage went down. has anyone else found this to be true?
has anyone kept the stock manifold but changed the rest? if so what did that do for fuel economy/performance? any input greatly appreciated, thanks.
has anyone kept the stock manifold but changed the rest? if so what did that do for fuel economy/performance? any input greatly appreciated, thanks.

