I am wanting to get a Eibach Pro-Kit Plus (Coils & Dampers), but they dont have it avaible for my 06. So Ive been reading on here, so if I switch to 05 spindles or earlier I will be able to use the kit? Also, is the rear suspension setup the same on all model sedans? The reason I ask that is because my 06 ZX4 is a standard edition & doesnt have a rear sway bar, so I was gonna get a rear sub frame from a 04 that has provisions for the rear sway bar. Will this work?