The K&N NextGen Diesel Dryflow cold air intake is a bolt-in replacement for the factory intake on the 6.7L L6 Cummins in Ram 2500 and 3500 trucks. K&N's own fitment catalog classifies it as a high-flow setup built around a roto-mold tube. Compared with a generic cheaper kit, the factory-style mounting and sensor relocation matter here. The kit comes with its own mass air sensor adapter and gasket, and K&N's install sheet warns that skipping the supplied hardware risks damage. Searches for 6.7 Cummins cold air intake, 2013-2018 Ram 2500 CAI, and Dryflow diesel intake all point to this same application.
Fitment context matters for buyers comparing model years. K&N's catalog lists this intake for 2014 through 2018 Ram 2500 and 3500 trucks, while the product name covers 2013 onward. The install sheet notes that this kit was not designed to fit vehicles with a body lift. Installation is a moderate DIY job, not a quick bolt-on. Installation can typically be completed in 60 minutes or less, and requires only simple hand tools. Expect to disconnect the battery, which can reset radio presets, and to handle the mass air sensor and intake air temperature sensor transfer.
The manufacturer's install sheet says the monitor is calibrated for the OEM intake and filter, so it will not read accurately with K&N products. The sheet says the monitor must be disabled to keep it from setting a warning.
The manufacturer states this kit was not designed to fit vehicles with a body lift.
No. The manufacturer warns that failing to follow the installation instructions or to use the provided hardware may damage the intake tube, throttle body, and engine.
Disconnect the negative battery cable first, but note that this erases pre-programmed electronic memories, so write down radio presets beforehand. Some radios then require an anti-theft code, which is typically found in the owner's manual. Loosen the three bolts on the air filter housing lid and remove the lid, then disconnect the mass air sensor and intake air temperature sensor before pulling the factory tube. Fit the mass air sensor adapter and gasket, reinstall the sensors, and secure the mounting studs and hardware exactly as the install sheet shows. Count on this being a multi-step job rather than a quick swap.
