i just

 

I have the STaSIS street/sport suspension kit. Feels factory smooth and handles like its on rails. lowers the car just enough without looking slammed
big fan

 

stasis is extremely nice but last time i looked at prices they were the highest

h&r makes a good set and its pretty affordable but you won;t have as smooth of a ride as stasis

tien also has coil over kit for street or pro which is priced according as well


all three big companies make great products and you can;t go wrong with each one it

also if u plan on bringing it to a shop to have them install them....ask them what coil overs they would recommend if they can;t think of anything that'd be good on your a4 then they shouldn't try to install them