The 2014 Porsche Cayman has 24 valves.
The 2009 Porsche Cayman has 24 valves.
The 2008 Porsche Cayman has 24 valves.
The 2012 Porsche Cayman has 24 valves.
The 2010 Porsche Cayman has 24 valves.
The 2011 Porsche Cayman has 24 valves.
The 2007 Porsche Cayman has 24 valves.
The 2014 Porsche 911 has 24 valves.
The 2014 Porsche Cayenne has 24 valves.
The 2014 Porsche Panamera has 24 valves.
The 2014 Porsche Boxster has 24 valves.
The 2014 Porsche Cayman's engine produces 275 hp @ 7400 rpm.
The gas tank on the 2014 Porsche Cayman holds 16.9 gal..