Reviewed By Dan B (New Haven, IN) Reviewed for a 2015 GMC Sierra —8/26/2015 5:05 PM
With right tools and a lift it took about an hour. Had to trim the driver side extension pipe to level out the pipes out the back of the truck. Sounds great!
Reviewed By sky b (FAIRFIELD, CA) Reviewed for a 2015 GMC Sierra —8/21/2015 8:39 AM
Overall great but doesn't work with the 8 spd trans. 2015 1500 Denali 6.2L. the workaround is to choose manual transmission in programming, but obviously you aren't getting any shift point adjustments or anything. Another note is that I have a lift and 35" tires, but the speed calibration had to be set to 33 to be accurate. "Luckily," we have the radar signs in our neighborhood, so I could take a few tries and get it dialed in, otherwise speedo would have read fast, not slow.