The K&N 63-2515 is a 63 Series AirCharger cold air intake for the 2020-2021 Ford Mustang Shelby GT500 with the 5.2L V8. It replaces the factory air filter and intake tube with a roto-molded HDPE tube and a red, oversized oiled cotton-gauze filter. Buyers searching for a 2020 2021 GT500 cold air intake, a supercharged 5.2L Coyote-family intake, or K&N 63-2515 fitment will find the core details here. The manufacturer estimates a 29.19 HP gain at 6,564 RPM and 42.8 lb-ft of torque, and backs the kit with a No-Hassle Lifetime Limited Warranty. The washable filter is rated for cleaning about every 100,000 miles of normal highway driving, which cuts out the recurring cost of disposable filters. Owners on user forums describe intake-only gains as modest and point to heat soak as the main limit, so this intake makes the most sense for drivers who also want cooler intake air.
Installation is a practical weekend job. The manufacturer's install sheet calls for basic hand tools, including a ratchet, extension, 10mm and 13mm sockets, and a flat-blade screwdriver. Disconnect the negative battery cable first, and note any radio presets or anti-theft codes before you start. The sequence covers the IAT sensor and harness, the two vent lines, the airbox lid and airbox mounting bolt, and the heat shield bracket, which fastens to the inner fender with the provided hardware. Recheck clamps and alignment periodically, as the manufacturer advises. Note that this kit is not legal for sale or use on pollution-controlled vehicles in California.
The manufacturer lists this kit for the 2020-2021 Ford Mustang Shelby GT500 with the 5.2L V8. Product details vary across sources, so confirm the year range with the manufacturer before you order.
No. The manufacturer states it is not legal for sale or use in California on any pollution-controlled motor vehicle.
Owners on user forums generally report that intake-only gains are modest, and that heat soak can limit results. The manufacturer's figures are estimates and are not tied to a specific tune.
The manufacturer rates the oiled cotton filter for cleaning about every 100,000 miles under normal highway driving conditions. Replacement filter number RP-2815 is listed for this kit.
Per the manufacturer's install sheet, this is a moderate DIY job that takes about an hour with simple hand tools, though the sheet allows up to 90 minutes. Disconnect the negative battery first and record radio codes, since disconnecting power erases stored settings. Work through the IAT sensor, the vent lines, the throttle body clamp, the airbox lid and mounting bolt, and the heat shield bracket. Install the vent fittings into the new tube as shown. Use only the hardware supplied, and recheck clamps and alignment after the first drives.
