Hello everyone!

I am the owner of a 2010 Insignia that is factory equipped with a pair of halogen headlamps. I should also mention it has headlamp washers and manual leveling. 

I use this car daily mostly to and from work. During autumn / winter I finish work after night fall and my daily commute includes a 30 km piece of road through an unlit field that has been known to have the occasional jaywalking rabbit or other, larger, 4 hoofed creature.

I recently drove a friend's car equipped

Hi there, I can see that there are other threads regarding this matter but I can't seem to find the exact information I'm after. I have a 2011 Astra J 1.7 CDTI and I want to lower it, so I have been looking at Eibach springs as I don't want to go for cheap coilovers. Ideally I'm aiming for a drop of at least 30mm all round as you know the arch gap is pretty big as standard. I have recently put 18" VXR alloys onto the car also. Can anyone provide me some clearer and more up to date information ab