I was unsure also.. I have aggressive offsets from factory.. et 50 rear and et 45 front.. 19's.. I had to pull and roll the fender.. Make sure they heat it up and pull it only a little to get 1/8 clearance.
I did the 2 rear arms, and the customer toe link and love the new feeling. I wanted the front but heard from Harold that it will increase the track width which freaked me out. I have already been through 3 sets of wheels to achieve the look I have now which is what I wanted.
I hadn't done the alignment from when I did the springs, the e93 sway bar, or the rear arms, so I still had the pins in the front too. I gain some clearance from that and he was telling me that the increase camber would be on the bottom shooting the wheel in the fender and not up at it.
After I saw the new amount of clearance, I bought the arms.. I'll have them on Wed and take photos for you to see before and after wheels shots..