I have finished installing these on my 2020 XT6. Joyful! Spent $60 instead of $245 for GM originals. Easy installation, max 70-80 minutes, no help required! Helpful Advice! All factory-installed screws have a T10 head. The rear tires have a very narrow space to access the screws with a regular screwdriver (if the tire is not removed). For this project I created a handy tool (picture attached) for unscrewing and applying optimal torque when installing newly installed fenders. Do not use power tools to screw/unscrew as you may damage the T10 screw heads. I chose to reuse the factory installed bolts rather than the ones that came with the fenders to avoid complications and wasted time. It was a wise decision that really paid off! You are advised to do the same. Great product, worth the money, love it!