I want to lower my 2000 audi a4, but I don't know what type of lowering springs or what brands are of quality. If anyone has any input, please let me know what you think.

 

H&R makes great springs and your gunna wana do your struts at the same time so you should get some like bilstein struts to go with those springs

 

if you want to go low get H&R coilovers!

 

From what I have read your stock shocks will only last about 6 months with a set of lowering springs, what I know is that the H&R/Bilstein setup which badluck was talking about is amazing! you can go race springs(f-1.9 r-1.5) or sport(f-1.25 r-1.0)...if you are gonna stick w stock wheels then go w the race springs, but if you are planning on doing bigger wheels and worried about rubbing issues then stick w sport. take a look at awe-tuning.com they have the package deals....

good luck!