What are the best coilovers to get for the Mk4 Astra? I don't mean like race spec or anything, but good quality and value for money. I had Spax RSX on my last car and thought they were alright but not amazing. Will they be height adjustable on the front and back? Last car was a 306 so only adjustable on front. I noticed that the springs don't go over the struts at the back on the standard setup, so I thought that might stop you adjusting the height.