I'm running a 215 35 18 w/ a 42 offset and I'm getting some rubbing. Wondering if a 45 offset would eliminate the rubbing completely? Also, looking at the flik wasp rim wonder if it sucks or not? Thanks

 

215/35-18 tires with a 42mm offset is usually rub free with the right suspension. What lowering springs do you have? Stock and H-sport springs normally do well with this set up.

I'd check tire pressure and make sure it is enough (37 psi) and also check alignment especially negative camber in the rear- looking for about negative 1.5 degrees

45 offset would help.

Other ideas? If rubbing is only in the rear then consider a Pilo Racing rear stress bar.
If you have a rear swaybar that is adjustable-try a slightly softer/firmer setting by one hole.