The K&N 70-1563 is a NextGen cold air intake for the 5.7L V8 in the Jeep Grand Cherokee, listed in the manufacturer's catalog as the NEXTGEN ALUMINUM COLD AIR INTAKE for the Jeep Grand Cherokee V8-5.7L. The tube is built from American 6063 aluminum, which the manufacturer describes as a rigid tube that raises airflow by up to 33%. A custom NextGen airbox keeps intake air away from engine-bay heat, so the cooler, denser charge reaches the throttle body. Buyers comparing it with a cheaper cotton-gauze or plastic kit should note that the reusable filter is designed to go a long time between cleanings, which offsets the higher upfront price.
Compared with the factory airbox, the manufacturer's stated gains are up to 18.5 horsepower and 31.8 lb-ft of torque with no ECU tune required. The included High-Flow LIFETIME filter uses oiled cotton media and is meant to be washed and reused rather than replaced, with the manufacturer citing up to 100,000 miles between services under normal highway driving. The Lifetime Limited Warranty is said to preserve the factory warranty, which matters for owners who want performance gains without voiding coverage. For a 5.7 Hemi cold air intake, this is a bolt-on upgrade aimed at towing throttle response and daily-driver breathing.
The manufacturer's fitment listings for this part include the 2015 and 2018 Grand Cherokee 5.7L V8, and the manufacturer's NextGen listing covers the 2011–2021 Grand Cherokee range. Confirm your exact model and trim against the manufacturer's fitment tool before ordering.
The manufacturer states that NextGen intakes are backed by a Lifetime Limited Warranty and will preserve your factory warranty.
Per the manufacturer, the oversized conical filter can go up to 100,000 miles between services under normal highway driving. Use the manufacturer's cleaning instructions when servicing it.
The manufacturer states that the full system can typically be installed in less than 60 minutes. Basic hand tools should be enough. Typical K&N kit installs call for a ratchet, extension, 14mm and 10mm sockets, an Allen key, and a flat-blade screwdriver. Disconnect the battery before starting. The inlet air temperature sensor is fragile, so remove it from the stock tube and seat it in the new one with care. Do not overtighten the hose clamps at the throttle body. Also reattach the crankcase vent and EVAP lines to the new tube. Read the instruction sheet for this exact part before starting.
