version do come w/ them. the difference is ultra-lite version is built w/ aluminum strut housings for 10% weight reduction compare to the Race version that what powertrix advertised on their website. so, basically powertrix race version can compare with SPL/ KTS coilovers. similar price range $1199 vs $1195 spl. but i'm not sure about powertrix race version is mono tube desing or not. ultra-lite version is mono tube design for sure. i was looking for coilovers too but not sure which brand to get including HKS or JIC etc..