Hey thanks for all the advice. I think you are right, 2K is too much for vanity. Both of these are new '05 coupes, so I went back to the guy selling black and said the color only worth 1k to me. I will let you know how it goes. Anyone know if the Renntech pulley/ECM kit can be had for less than the $3,295 they charge for the SLK32 - also, would this invalidate warranty???