Hello people ! ! ! Have VW FOX 1.2 and want to lower it so only sport springs. My question: Can you install lowering springs yourself, I used to have a Japanese (Mazda construction year 92), that I built myself. And how far can you lower with original insulation, have introduced me VA 50mm and HA 40mm Has someone experience with self installation and whether the all is possible. I thank in advance MfG