I have a set of Centerline International Performance Springs for sale, which lowers a coupe or spider approx 1" or a sedan around 2". Similar to Alfaholics 'Kit B' ride height.
Less than 1000kms on them, a previous owner fitted them but i swapped them out for Alfahlolics springs. The front springs are a fair bit stiffer than the Alfaholics ones but the rears are similar.
To be clear, the front springs are (what i find to be) pretty stiff for your typical Australian road, hence why i swapped them out, although they make the car handle incredibly well, a good idea if you take the car to the track occasionally. Centerline recommends to use the standard size swaybar with these on their website.
Fronts:
Height 235mm
Coil thickness 20.7mm
Rears:
Height 355mm
Coil thickness 13.4mm
SOLD