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The 2008 Hyundai Sonata has 16 valves.
The 2005 Hyundai Sonata has 16 valves.
The 2004 Hyundai Sonata has 16 valves.
The 2007 Hyundai Sonata has 16 valves.
The 2014 Hyundai Sonata has 16 valves.
The 2001 Hyundai Sonata has 16 valves.
The 2002 Hyundai Sonata has 16 valves.
The 2003 Hyundai Sonata has 16 valves.
The 2006 Hyundai Sonata has 16 valves.
The 2011 Hyundai Sonata has 16 valves.
The 2009 Hyundai Sonata has 16 valves.
The 2013 Hyundai Sonata has 16 valves.