Reviewed By Nicolas G (GREENVILLE, SC) Reviewed for a 2006 Hummer H3 —9/10/2014 6:49 AM
For my 2006 Hummer H3, this was the easiest thing to put it. You leave the bottom half of your stock intake air box in place and literally drop this into it and use the factory snaps to hold the new heat shield assembly in. I've driven about 250 miles since I put this in and my gas mileage has improved about 2-3 mpg. Which for me, is a lot. I've gone from averaging about 11 mpg to between 13-15 mpg. You can definitely tell a difference when you really step on the throttle.