Originally Posted by SlickGT1

They are correct. Lol. What he did was smart. He clipped the tabs off the flares and put in a tiny ass screw from the bottom. He can thus remove arches and sell them separate from car when he sells it.

Bmw mounts flares like below.
They mount by making holes in your arches and a tab ( that he breaks off) goes through with a metal teeth thing holding from inside. Your wheel arches are permenantly fucked. You have to make about 10 holes per rear arch. 1/4” by 1”. If you go to sell arches, you can’t. You will be left with 50 holes visible from the sides, fenders and rear bumper. This method also takes about 10 hours. You have to remove your wheel arches, that’s like 100 blind rivets, remove rear bumper, buy all those clips and rivets. Molest every arch and rear bumper. I did mine this way. And it was epic.

Mrbmwx5 is also an OG mod king. I suggest you even search his name and see the stuff he pulled off for the X.