Every kit has its own program, so you get diff. mpg.
I have the Greddy kit and I didnt really notice a diff.,I was surprised. I lost around 20-30miles on a full tank under once in awhile boost. So, that equals around 2-3 miles less per gallon.
Gas mileage also falls on how you drive. If you drive normal(dont really boost), boost ALL the time, or once in awhile(in the middle of dont really boost and all the time) is a big factor.
Bookmarks