Hello you have the idea 😉 I would like to have my little Lupo a little tighter, but without enormous costs (so no Farhwerk), so I thought about sports springs that bring the little one even further on the road. Now I have not bought one yet and would also like to hear your advice. Could you recommend some to me or is the stupid meaning of what I plan to do ? And you know what else needs to be done besides the installation, so survey or something .. . TÜV is clear, but still what ???? Thank you already greeting Tino