Coilovers

Alright i have a couple questions.. on coilovers, i have an 03 Ls Sport Coupe cavalier, it has the "Sport Suspension" which according to chevrolet is different, now if i get coilovers for that fit the 03 model, will those fit on the sPORT COupe suspension? or is there any difference, and i was also wonder, some of the coilovers say like 95-98, while others say 95 and up.. how come some are differetn or would the ones that 95-98 fit on the 03? thanks in advance for any help it is greatly appreciated

Sean