I just received and email from Stephan at Mosselman. They currently offer a Vortech based system for the SLK320 (which should work for us) for about $4,500 USD. They are also coming out with an Eaton based system (same layout as SRT-6/C32 AMG) in December or January and should sell for the same cost as the Vortech system. The Vortech system will add 85 hp to your engine and torque will increase to 303 ft lbs (410Nm).