yo
first up, the ones in the pic dont look 9j or even 8j as no stretch on the rubber, i could be wrong but thats how it looks
mine are all 8j, the car did catch on the front passenger side, on the rivets which held the GTI arches on, the car was dropped about 60mm at that point and i could go no lower, could be down to the brand of rubber you use, im curently running yokohama.
my mate owns his own bodyshop with a propper roller etc, what we did was use an electric saw to trim off the lip on the gti arches, including the rivets etc, this means you have to bond them back on, ill come back to this in a sec
next job we rolled the fook out of the metal and remove the brackets for the rivets which hold on the gti arches, i did mine more than what you would normally as i wanted to drop my car on its ass, some paint did crack a little but we sealed this with sealer,
this is a must!!!!! even if you dont see any cracks seal them, i did this part myself and i used almost half of tin of the stiff.
gotta be carefull on the fronts as they are very thin unlike the rears which are doublt ply metal, on the front if you pull them out too much the gaps between the door and wing will be all out to cock

to bond the GTI arches back on we used this bouble sided bonding tape which all bodyshops use (i dont know the name but its strong) we did a run of this right round the edge of the trim to stop any water been able to get in, we also used what looked like tiger seal (black gell stuff)
we left it to set
i then wound the coilovers right down and bob is now your auntys uncle, no rubbing, LOADS of clearance and i can throw it intio corners at speed with 4 people in the car and have no issues, its great, well happy with the job
