Straight Pipe Cummins Driving Up Mountain Road Preview 3 - 6.7L 6spd Manual Dodge Ram 

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Driving up a mountain, with a great view at the end of the full video.
2010 Dodge Ram 3500 6.7L Cummins, G56 6 Speed Manual, Regular Cab, Dually, 4x4, 3.42 rear gear
Mods: Smarty Jr (+30hp), 4 inch downpipe to 5 inch side exit exhaust with 6 inch tip, Airaid Intake