i dont know if i wasted my money to be honest. my mods list includes koni yellow w/ eibach pro-kit, suspension techniques front & rear sway bars, neuspeed front strut bar, dc sports rear strut bar, and 17 inch enkei rims with 225 45 17 nitto 450 tires. i have to take this mountain to get to pennstate and i tried *testing* out the combo and i was kinda disapointed. dont get me wrong, its an improvement, but not to what i had hoped for. i guess stock s2000 and rsx can handle just as good as me.. and i thought all these parts can make me better than them. after all... my car was based on a suspension design from over 10 years ago... its a 94 honda accord ex coupe.