Just to add to this thread in case it’s of use to anyone. I’ve just fitted a set of very low mileage Bilsteins & springs from a mk3.75 to my 1.8 NC1 along with RX8 yellow dot ARB’s. Ride heights on the std shocks were 385mm/360mm front/rear respectively. With the Bilsteins it’s now 370/360.
Matt
Because my front O/S spring is broken at the pigtail, I’m looking to upgrade all round (my 2007 2.0 Icon has done 57k so the shocks/springs must be tired all round) I was thinking of the B12 pro kit, but when you say yours is “a touch low” how does that manifest itself in real world driving? I’m aware that the non-sport suspension on the Icon is set high as standard so was wondering how much lowering by 30-35mm would affect ride over speed bumps etc - can you enlighten me?
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My car on 35mm lowering B12 kit (there are two kits, one is 30mm, the other is 35mm) touched down on almost every journey. If the road was very bumpy, I had to drive slowly. Normal road humps were passable with care, but the type you try to straddle were very dodgy.
I think I kept them on for 3 weeks before changing them.
If it was a track car, it would have been ok/ideal, but I wanted an everyday car that was easy to use and not worry about.
Many thanks, I’ve spoken to Bilstein and ordered the 30mm so fingers crossed!
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There is a difference of 10mm in the free length of the 30mm and 35mm springs. They will shrink by the same length under load (about a mm per 7kg - so very approx about a 40mm drop on each corner, less the amount of preload dialled in.
Also there is a slight leverage effect, so a 10mm difference in spring length will equate to more than 10mm at the wheel.
So I reckon that the 30mm drop will be a lot more than 5mm higher than the 35mm drop. So I think they may be ideal. I didn’t take the risk and bought Meister instead, once bitten twice shy and all that. But I think you will be very happy. Please do update us here. Be useful for lots of future decision makers.
Will do 
Just realised, I didn’t update:
Well, as far as I’m concerned, my car is now perfect. Rides beautifully, corners flat and doesn’t ground on any type of speed bumps. in fact, I’ve now got the bits I wanted in a Sport (Bilsteins/LSD) but not the bits I didn’t (6 speed box/17" wheels) - result!
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How about a picture?
Some years ago with my previous Mk 3 I had a broken front spring, having a Guarantee from Stoneacres I got them to repair it. Both springs were replaced and they handed it back like this !(see Pic) I rejected the repair and after two attempts they got it back to where it was prior to the broken spring . Not to say that they did a good job but left off the cross bar metal connection plate !!
