kyb agx, hands down! tokicos have a tendency to blow with high spring rates and severe lowering, but the kyb's can handle them better. although the warranty voids with anything more than a 1.5 inch drop, i have experienced them handling high spring rates and a good amount of lowering, besides some freak accidents. but if you want to be on the safe side, id recommend saving up a few more bucks for koni yellows.