Need spring/strut recommendation, Spaced out the wheels and now the tires rub Options

[shaunrichard]

I just installed 25 mm spacers on my wheels, 15" x 6.5" with 38 mm offset. I love the look, but now the rear wheels occasionally rub the fenders, particularly if I hit a dip or hump with a little too much velocity. My springs and struts are all original and I have 124,000+ miles on my '97 convertible. First, would new suspension components help tighten things up enough to minimize and perhaps eliminate the rubbing? Second, what should I get? At one point, I was going to lower it with Tein S-Techs and KYB GR2's, but now, obviously, the lowering would be ill-advised. So are there good non-lowering performance springs that I can put on with the KYB struts? Thanks for the help.