[barney911rs]

Coil-over would be the best solution for stiffening the suspension beyond what T-bars can do if the rules you are running under allow that. You never mentioned if you are running PCA or what. Obviously a stock class will not allow this. Maybe it's time to consider moving to a GT class that will allow you to make more aggressive suspension modifications. For example, the NASA GTS Challenge group uses HP/Weight to class the cars, so you can go hog wild on suspension stuff, and stay away from $$$$$$$$ engine mods to compete.