Which springs to use on a: 225/45/18 tire.
 

I was going to go with a 225/40 tire but it's too thin for the roads where I live. So I went with a 225/45 tire.

The rims are 18x8 all around.

Which springs should I get and how low should I go? I just need a drop enough to minimize some gap.

I've been looking at: cork sport, eibach (pro-kit), racing beat, canuck motorsports, h&r, and tein. Thanks for any feedback and help.

Here's what I'm workin' with:
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very nice rims, any one of those brands you mentioned are good. 1.5in all the way around is what i suggest

thanks for the feedback, much appreciated :) i'm lookin' at the road magnet springs right now... i'm trying to find ones that are 1.5 all around...