'Not sure if this has been previously covered (apologies if so) but does anyone know the spring rate for the rear springs of an '05 ? I have installed Bilstein shocks all round, but the springs, especially the rear springs, seem to be the next step for attention.

This is probably a clumsy description, but the rear springs seem to be choppy. A more compliant spring would seem more suited to the suspension design. 'Not interested in lowering.

Anyone know the spring rate ? Tks