Purchased this intake in hopes of better mileage, I am inpressed! I have noticed a 1.5 mpg+ increase consistantly over the last few tanks. Was super easy to install, only reason I gave a 4 star for installation is due to one of the brackets not lining up with the heat shield but its no big deal, the other two fit just fine. Highly recommend this intake system. Oh and I absolutely love the hiss/roar this intake makes when down shifting lol.