How much do they charge directly from their website? There's no info listed there. Did you feel any difference in terms of airflow under the car at higher speeds?
I was looking at the AC Schnitzer one as well which was similar to this design, only they had a rear diffuser under the rear of the car as well for downforce. I always wanted something like this, just never knew where to find one. The 318's never came with any kind of plastic cover for the bottom, so this is a good investment for 318 owners. I assume it should bolt right up to the OEM M3 front?
'02 C32 AMG / '07 C280 / '07 CLS550 / '15 JKU Rubicon