all coilovers have that bounce from what i hear..so i cant tell u what to do w/ yours...as far as my maxima is concerned..i was told as to 'superiority' (best ride for the buck) w/ the availability for my car was
1. megan coilovers
2. ksports
3. D2
ive personally only rode on ebay coilovers...and i swore on the bridge we were in a 64 impala w/ hydros at a competition