OFFICIAL: Boxster S Porsche Design Edition 2 and the Cayman S Sport Revealed Available in dealerships in early September, both Cayman and Boxster special editions finally break the 300 bhp mark with the 3.4liter flat six producing 8 bhp more for a total of 303 bhp (223 kW) via a new sports exhaust. By Brian Potter Official - Aug 4 2008