Reviewed By BRADLEY C (Carmel, IN) Reviewed for a 2009 Jeep Grand Cherokee —9/11/2013 10:32 AM
The instructional pictures didn't match up exactly to my year of vehicle & the hardware kit was crap. I had to use some of my own hardware to complete the installation and the instructions don't properly identify the fasteners, etc. After a frustrating pre-assembly, the kit installed easily. My on-board computer showed an immediate increase in MPG as high as 25MPG then settled 23.8 during my first road trip. The previous high hwy MPG was 22.5. I detect no change in sound volume from my V6.