I'm replacing the shocks/springs on my '99 9-3, and have sifted through countless threads on here regarding Koni, Bilstein, KYB, OEM Viggen, Vogtland, etc. for ideas. What are your thoughts? Is there a respectable shock/spring combo that would stiffen things up a bit and drop the car for $300-$500? The car is a daily driver (almost Stage 3) sitting on 225/40/18 tires.