I run KW coil overs on my car. It was the very first set to come out for the S197 and they are made in Germany. There are 2 types (v1 or v3) If your into racing, V3 is the best but for street the V1 is good. I've had them on my car since oct 05 and never had a problem and ride is awesome.
2006 Deluxe GT 5 Spd Manual Tungsen Grey with black painted stripes, 20 x 10 konig beyonds, kw V3 coil over kit, BMR Chomoly Panhard rod, BMR Boxed Subrames, BMR Upper Strut, BMR lower control arms, BMR Upper Control Arm, Eibach Sway bars, Prothane Eurethane bushing kit. Bassani cat back.w/ x-pipe + hi flow cats, Roush Rear Spoiler, Street Scene Body kit,Street scene grille, 3D carbon louvers, HID system, Raptor Shiftlight with Speed of sound pillar guage, C&L with Preditor 91 Custom Tune