12637647 Updated Driver Side Exhaust Manifold, 2001-2016 GM 6.6L Duramax

GM SKU: 12637647

429.95

$429.95

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12637647 Updated Driver Side Exhaust Manifold.
Greatly increased flow characteristics over the original unit. A great alternative to higher priced after market manifolds.
For 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax

Hi Flow left hand manifold.Bolt in factory replacement. GM has introduced a new manifold that will flow better then the original OEM unit. Reduced pinch area near steering shaft for a nearly ideal flow. Greatly increased flow characteristics over the original unit. A great alternative to higher priced after market manifolds.