The K&N 77-2588KTK is a cold air intake system with a mandrel-bent aluminum intake tube built for the 6.2L gas V8 in the Ford F-250 Super Duty. It replaces factory air filter and intake tube and uses a washable, reusable High-Flow Air Filter featuring oiled cotton filter media. For buyers comparing it with a cheap drop-in filter, the value is the full air path, not just the element.
The manufacturer's dyno chart estimates a gain of about 19 hp, adding an estimated 18.96 horsepower at the wheels, so treat that as an estimate rather than a guarantee. Owners on user forums are split on aftermarket intakes for this engine, with one thinking a cold air intake is a waste of time and money. Buy this kit for throttle response, intake sound, and a filter you clean instead of replacing, and expect the cleaning interval to be every 100,000 miles under normal highway driving conditions. Searches like "2017 F250 6.2L cold air intake" or "K&N 77-2588KTK install" will find this kit.
Yes. The manufacturer recommends that customers do not discard the factory air intake, so store it in case you need to return to stock.
The manufacturer says the filter needs cleaning about every 100,000 miles under normal highway driving. It also offers a recharger kit (99-5000) for cleaning and re-oiling the filter.
Details vary across sources for this part number, so confirm California and CARB status with the manufacturer before buying.
The manufacturer's guidance suggests roughly an hour, and the listed tools are a wrench, extension, flat blade screwdriver, and Allen wrench. Start by disconnecting the negative battery cable, but first write down your radio and memory settings, since disconnecting the battery erases pre-programmed electronic memories, and some radios will ask for an anti-theft code. Use the supplied hardware and follow the step-by-step sheet, because the manufacturer warns that not doing so MAY DAMAGE THE INTAKE TUBE, THROTTLE BODY AND ENGINE. Also note that this kit replaces the air path, not the intake manifold, so it will not fix the intake manifold runner ticking that owners on user forums have traced to the intake manifold runner control.
