I did the Eibachs to my W203 C240and the ride is as good as stock except over rough roads. I did it for cosmetics as I drive 25,000 mostly highway miles a year. I am having a 'jouncy' ride when several people are in my car and assume it is because the stock shocks are not working in their ideal 60% range. I talked to the Eibach rep and several tuners and they ALL recommend Bilstein Sport shocks, which are shorter to accomodate a lower car. But I am concerned about the ride quality. Someone said 15-20% stiffer than stock, but Bilstein's web site site says 30% stiffer than THEIR HD, which is already stiffer than stock. I want a shock that will work properly with the lowered car, but I want the best ride quality, not road-race handling. Someone said Koni, but do they have a shorter shock also? Anyone have any input?