http://www.mbworld.org/forums/showth...P+pulley+SLK32

After reading the post looks like the ASP pulley used to be $400. I found this website from way back if you can get through all the arguing and the back and forth it has alot of great information. Pulley companies arguing from all sides. After reading this I am still up in the air on what pulley system and ECU to go with. But the evosport additional reservoir might be the selling point.

http://forums.mbworld.org/forums/sho...threadid=18979