Well...
Tires aren't really the issue here... It's clearance. He can't put on anything that'll put his total wheel + tire radius above 20" and not have rubbing issues on an Elantra w/out suspension modifications. Even with the Ksports, they'll probably only increase the ride height by what? 1-1.5 inches? Increasing the stiffness would ruin the comfort of the ride.
Howie~
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