Got this for my 2003 F-150 Heritage Edition. Instant power increase, better get up and go and just all around a much better set-up than the stock filter. I feel like I got a slight mileage increase, but it's been hard to tell for sure with the crazy sub-zero temps we've been having here in MN lately. Regardless of that, this filter will save you money in the long run either way as it will outlast the truck you put it in and you'll never have to buy another one.