The K&N 63-3115 is a 63 Series AirCharger intake that replaces the factory air box on the 3.6L V6 in the Chevrolet Blazer and GMC Acadia. The tube is high-density polyethylene, rotationally molded, and the manufacturer says it boosts airflow volume for more horsepower and torque. The kit pairs that tube with a washable, reusable filter using oiled cotton media. The manufacturer describes the gain as guaranteed, but no output figure appears in its own documentation, so this listing does not state one. Compared with a universal cone filter, the kit is built for this vehicle, and it includes a heat shield, a mass airflow sensor adapter, and hose clamps, so you avoid fabricating mounts. Search terms this part matches include 2019-2023 Blazer 3.6L cold air intake, washable oiled cotton air filter, roto-molded HDPE intake tube, and MAF sensor adapter kit.
Fitment is the first thing to verify. The manufacturer's listing names 2019-2023 Chevrolet Blazer and GMC Arcadia V6-3.6L fuel-injected applications. Its install sheet covers wider year ranges, so check your VIN against the manufacturer's fitment chart before ordering. This kit is not legal for sale or use in California on pollution-controlled vehicles, which matters for buyers in that state. For DIY installers, the job is manageable in a home garage. The manufacturer's listing estimates typical installation takes around an hour.
The manufacturer's listing shows 2019–2023 Blazer and Acadia V6-3.6L fuel-injected applications. The manufacturer's install sheet lists broader ranges, including 2017–2023 Acadia and 2019–2026 Blazer, so confirm your exact year and VIN with the manufacturer before ordering.
No. The manufacturer states the kit is not legal for sale or use in California on any pollution-controlled motor vehicle.
The manufacturer describes the filter as washable and reusable, made of oiled cotton media. If you want a spare, the manufacturer lists RC-3690 as the replacement filter.
The kit includes a MAF sensor adapter. Per the manufacturer's installation guidance, the sensor is removed from the factory air filter housing, installed into the K&N adapter, and then mounted on the new intake tube.
Plan on about an hour with basic hand tools. The manufacturer's install sheet calls for a flat-blade screwdriver, 3mm and 4mm Allen keys, a T20 Torx bit, and side cutters. Disconnect the negative battery cable first, but note that doing so erases radio presets, and some radios will ask for an anti-theft code after reconnection, so write down your settings and check your owner's manual for the code. Unplug the mass airflow sensor connector before removing the factory intake hose and its band clamp. The install sheet also has you cut the supplied edge trim into 51-inch sections for the heat shield. Use the included worm-gear clamps and confirm all couplings are tight before starting the engine.
