Not knocking on the filter or anything, it’s probably a damn good filter according to the chart and probably would see large gains in high performance motors or stock v8. I don’t believe that we’re the target market for this if anybody done any research on the air Intake on the tj. It flows more than enough for the motor. As far as fuel economy, it may make a 1mpg difference at best but fuel economy really isn’t a concern on my end considering I drive a vehicle with body lines the equivalent of a brick