The K&N 77-1568KTK is a 77 Series cold air induction kit for the 6.4L V8 in Ram 2500 and 3500 trucks. It pairs a mandrel-bent aluminum intake tube, finished in textured black, with an oversized oiled cotton element, and it replaces the factory air filter and intake tube rather than working alongside them. Shoppers searching for a 6.4 Hemi cold air intake for a Ram 2500 or 3500 will find this kit has the core components of a complete intake system.
The manufacturer estimates a gain of about 15.58 HP at 5005 RPM and roughly 23.9 lb-ft of torque, and labels both as estimates, so real-world results will vary with the truck and tune. The kit is also marketed as legal for use in all 50 states under CARB Executive Order D-269-100. For owners in emissions-sensitive regions, that certification is the main reason to pay more than for a generic open-element filter with no compliance paperwork. Plan to use the 77 series replacement filter, RU-1048, for future service, with RF-1048 and RU-1048XD listed as alternates.
Published fitment years for this part number are not consistent across sources. The manufacturer's page lists 2014-2018 Ram 2500/3500 trucks with the 6.4L V8, while the product title references 2014-2015, so confirm your model year with the manufacturer before ordering. No manufacturer install sheet was located in this research, so review K&N documentation before starting. The kit includes five stainless steel clamps and two couplers, so check the hardware count on arrival.
The manufacturer's page lists this part number for 2014-2018 Ram 2500 and 3500 trucks with the 6.4L V8. Because the product title references 2014-2015, confirm your exact year and configuration with the manufacturer before ordering.
Per the manufacturer, the kit replaces the factory air filter and intake tube, so it is a replacement system rather than an add-on.
The manufacturer states the kit is legal for use in all 50 states and cites CARB Executive Order D-269-100 for its emissions compliance.
