Need help with rims size and offset with tien mono flex suspension
 

I am installing the Tien monoflex coilovers with the EDFC and I want to put 5Zigen's Proracer GN+ 18in. wheels on my car but I don't know what size to go with or the width; they come in 18 x 7.5 8.5 and 9.5 and offsets from +12 to +48! I want the maximum size for performance but don't want them to rub with suspension setup any help will be much appreicated because know don't know much about sizes and offsets on wheels....Thanks!!!!!! I posted this in the wrong place but got asked a couple of questions that might help refine your answers for me....I don't want a straggared setup and the drop of the tein monoflex is 3.6 in front and 1.6 in the rear......Thanks again guys!!!!

I would suggest posting this in the "Will It Fit Thread" but lets take a stab at it here.

1) Do you want to run a staggered setup? (staggered = different sizes for front / rear)
2) do you want the same size / width as OEM or something more agressive? (OEM wheel is 18x8 with +50 offset)
3) rubbing will depend on how low you go with your coilovers.

-If you are indeed looking at "maximum performance" then staggered is not the way to go. (see Sticky thread in wheels section)
- Weight is also going to play a role. Some of these aftermarket wheels are actually heavier then OEM so you're adding rotational mass to your car. What's the weight of the ones you want? (this requires knowing what size, but it'll give you a general idea)