Tow hook mount (2 pins to attach - takes 5 seconds)...you don't have to keep the plate on, just keep your car clean and the plate ready on the floor in the back for the inevitable "Oh, my bad officer, I just washed the car and forgot to reattach the plate. Here, let me do that right now. Thanks for reminding me." ...still pretty clean with only the mount showing and doesn't block any air flow...forgive the pic, but I don't have an M2C, just a lowly OG M2
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