I used the SLP bolt sfc's on my car.It made a big difference gone were all the squeaks and rattles.I have had them on my car for 4 years now and nothing has loosen up in that time.I checked them quite often after the install and they were never loose so now I check once a year.There is no sign on elongated holes either.This and the strut tower brace were one of the best things I have done to the car.

Originally posted by sgias95Z
I have the SLP bolt-ons..... .......I ended up having to elongate a couple of holes ....

I had the same problem but like I said it has been 4 years with no problems.

 

Just getting SFCs is improvement enough. I don't think those KBDD are really worth it, perhaps... no tests or anything on these kinds of mods.

I have a hardtop btw, and the Granatelli SFCs I got are pretty nice. You, should probably get BMR so they match, although I don't think they tuck in well.