The K&N 71-3540 is a performance intake kit for the 2018 Ford Mustang GT with the 5.0L V8 fuel-injected engine. It is designed to replace the stock intake tract with a performance-oriented air intake system. Because this description is written from the product name and MPN alone, buyers should check the fitment and included components against the manufacturer's documentation before ordering. Shoppers searching for a 2018 Mustang GT 5.0 cold air intake, a K&N 71-3540 intake kit, or a 5.0 Coyote intake upgrade will find the part listed for that exact application.
Compared with a stock airbox, a dedicated intake kit is built to change how air reaches the throttle body, which is the reason enthusiasts upgrade. Any claimed power or sound changes should be confirmed on the manufacturer's spec sheet or in owner reports on user forums before you rely on them, since real-world results depend on the rest of the vehicle's setup. Choose this kit if you want a K&N-branded intake matched to the 2018 GT's 5.0L engine rather than a generic universal part. Confirm the kit's contents and any required hardware before you start.