The remainder of the sportline kit consists of different lower control arms, springs and rear sub frame mounts.
If your going to upgrade the bars, go with the largest you can, those being the 500E units. The 500E bars require slight modification to fit but it is worth it.
FYI
Sportline front bar is 1" thick
400E front bar is 1.055
500E front bar is 1.125
My advice would be to go with the 500E bars, Bilstein sport shocks and either Eibach or H&R springs first, later follow up with the sportline lower control arms/bushings and then the sportline rear sub frame mounts. If you are really feeling the need for structural rigidity, add front/rear strut tower bars, available from
www.bekkers.com