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Features32 Thrill GeneratorDune-Running Diesel DodgeTech Inspection24 Double-Duty CompressorThe New Twin Pumper from ARB28 Thrice the PowerTriple Turbochargers on a Cummins Diesel58 New Edge of PerformanceTune and Monitor Your Diesel from a Single UnitTech54 BulletProof Diesel's New Water PumpFixing the 6.0L's Hidden Cooling Issues56 Underseat Security for Your RaptorTuffy's New LockboxEvents/Adventure38 Best Off-Road BuysThe Best Off-Road Truck Deals Available44 2012 King of the Hammers Lots of Racing Packs the Hammertown 48 The Tires of the King of the HammersWhich Is Best for Your Type of Off-Roading?Off-Road Project Trucks50 14-Bolt Stopping PowerRetrofitting Disc Brakes Onto a 14-BoltDepartments8 Off-Road Rant10 Off-Road Rides14 Long-Term Updates16 Off-Road Hardware20 Desert Dirt 22 Unloaded62 Kopycinski's BrainOn the Cover: Carlos Calderon's metallic gray truck hit the sand dunes like a freight train blasting through an early morning fog. Photographed by Jerrod Jones.