The K&N 71-3535 is a Blackhawk Induction cold air intake for the 5.0L V8 in the 2015 Ford Mustang GT. The manufacturer builds it around a black powder-coated aluminum intake tube, an oil-free layered DryFlow synthetic filter, and a steel heat shield that keeps hot engine-bay air away from the filter. The manufacturer estimates a rear-wheel gain of about 18.68 hp and 11.41 lb-ft of torque over a stock 2015 GT, from its own dyno testing. Owners on user forums are more cautious, noting that intake-only gains without an ECU tune tend to be small, so set expectations accordingly. This is a bolt-on upgrade for owners who want a no-oil filter, a cleaner intake sound, and a complete replacement of the restrictive factory air tract rather than a basic filter swap.
The kit attaches to the factory mounting points and includes its hardware, so you do not need custom brackets. Under the manufacturer's installation sheet, the job is typically done in 90 minutes or less with common hand tools, though the sheet calls for careful disconnection of the battery, hoses, and sound tube. The dry filter avoids the oil residue of oiled alternatives, and the manufacturer backs the kit with a No-Hassle Lifetime Limited warranty. Search terms this kit matches include 71-3535 Blackhawk intake, 2015 Mustang GT cold air intake no tune, and DryFlow synthetic filter 5.0 Mustang.
The manufacturer's product page lists the kit for the 2015-2017 Ford Mustang GT with the 5.0L V8. An older K&N article names only the 2015 and 2016 model years, so the listed range varies by source. Confirm your exact year with the manufacturer before ordering.
The manufacturer's product materials for this kit do not spell out a tuning requirement. Owners on user forums generally report that gains without a tune are modest, so contact the manufacturer for its current guidance on tuning.
The manufacturer specifies cleaning the filter every 50,000 miles under normal highway driving conditions.
The manufacturer states that the kit is not legal for sale or use in California on any pollution-controlled motor vehicle.
The manufacturer rates a typical install at 90 minutes or less with simple hand tools. Its installation sheet lists a flat-blade screwdriver, ratchet with extension, 10mm and 13mm sockets, pliers, a T20 Torx bit, and a 3mm Allen key. Before you start, turn off the ignition and disconnect the negative battery cable, and note your radio presets, since disconnecting the battery erases stored memory and some radios need an anti-theft code. The sheet walks through removing the engine cover, disconnecting the idle bypass, crankcase vent, and EVAP hoses, and separating the sound tube from the intake tube. Cap the sound drum with the provided cap. The manufacturer warns that skipping its steps or substituting hardware can damage the intake tube, throttle body, or engine, so use only the supplied hardware.
