SlowGS3

My friend SC400 had supra eibach/AGX that sit too low the front tires rub the wheel well lining (tires size 245/40/18). Instead of swap out the suspension or get smaller tires, any vendor made suspension spacers (that go between the upper strut mount and body) to raise the car a little? please see the link if you don't know what I am talking about. Thanks,
spacers

Twirl

looks like you found some already in the link. Why can't you use those? maybe he needs the fenders rolled, or wheel spacers. Im not as knowledgable about suspension as a lot on this board but those are my .02 worth, i bet some pics of the affected area would help clear this dilema up a little.

SlowGS3

the one in the link is for miata. Since it rub the upper of the wheel well lining, he need to raise the car alittle to avoid rubbing. I know there are spring spacers but IMHO, not a good way to raise the car. Swap out suspension or smaller diameter tires= more money

SCV8

Spring spacers have worked for me for years, never had a problem, and they are a great way to get the height just right.
Some machined aluminum parts, bolted to the spring seat would work, or they do make spring cups that are a stamped steel liner over a plastic or rubber pad, might be enough of a boost.
Just be sure to only have a rubber part on one end of the spring, and not both as the spring action will be affected.