Fitting Challenge Spec Bilsteins With Std Springs ?

[Turbo7379 3]

I'm going to fit a set of challenge spec bilsteins to my race/rally car & I'm wondering if it's ok to keep the std ride height ?

 

Currently the car has a set of -25mm Jamex sport springs fitted with a set of new std gas billies but the back of the car is std & frankly it looks silly . It seems to handle fairly well , though the rear does skip about a bit on bumpy corners .

 

Long term plan is to overhaul the rear beam & lower it to suit the front . In the meantime I'm going to fit the billies to stiffen up the suspension , do they work ok with the std springs ?

[Sandy 191]

Yes, firm but fair.