FASS Titanium Signature Series 100GPH Fuel System for GMC/Chevrolet 2011-2014 Duramax 6.6L (Stock-600HP) LMM The instructions will guide you Fuel Injector Lines 50-74004 No Turbo size:Billet S472/83/.90
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FASS Titanium Signature Series 100GPH Fuel System for GMC Chevrolet 2011 2014 Duramax 6.6L (Stock 600HP) LMM The instructions will guide you Fuel Injector Lines 50 74004 No Turbo size:Billet S472 83 .90 The instructions will guide you for either an inside the frame or outside the frame mount Model Year Information: 2004 Models: If you have a 2004 model you must check your VIN code to determine your production date