I have a 2008 mitsubishi outlander and I just bought the oem muguards, did you guys remove the tires to install or is there a way to put them on without taking off the tires?

 

I was able to install them without taking the wheels off. Turn the front wheels depending which side you are working on for more clearance.

It's the lower screw inside the wheel well on the rear wheels that is a bit of a tight fit to install.

Used a 3/8-inch air ratchet with a phillips head socket. You might need an extension with a U joint to get to that one screw or a long screw driver. I forced the ratchet into the wheel well on a bit of an angle. It still caught the backing clip and straightened out as it went in.