Reviewed By David D P (West Jordan, UT) Reviewed for a 2003 GMC Envoy —10/28/2010 7:01 AM
Installation was about average, performance gains were nice. My Envoy is a lot funner to drive now.
Reviewed By Brian C (Fall River, MA) Reviewed for a 2003 GMC Envoy —6/6/2009 10:50 AM
It was really easy to install, and this is coming from someone who doesn't even do their own oil change. It wasn't as loud as I would have hoped cuz of the factory resonator box but being a machinist by trade I made an attachment, which removes the resonator box and connects right to the throttle body and now I get the sound I was looking for. The power is definitely there and my MPG's have improved (as long as you don't tromp on it much). I use to roll around getting 15 mpg city and 17-18 mpg highway, now I'm getting 17-18 mpg city and 19-20.5 mpg highway! I definitely recommend this product for someone who doesn't want to spend 3 bills for the K&N