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SKU: 21512-1 | UPC: 024844263056
The K&N 21512-1 adapter connects 6-inch diameter air filters to 3.5-inch intake couplers expanding options for custom air intake builds across various vehicles. This versatile component supports unrestricted airflow in performance applications. Constructed for long-lasting use in demanding conditions.
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Custom Air Intakes | All |
Air intake components control how filtered air enters the engine, directly affecting throttle response, power output, and fuel efficiency. Upgrading the intake path from the filter to the throttle body is one of the most accessible performance modifications available for nearly any vehicle.Popular UpgradesCold air intake kits are the most common upgrade, relocating the filter to a cooler area of the engine bay and replacing the restrictive factory airbox with a mandrel-bent tube for improved flow. Short ram intakes keep the filter closer to the engine for a more compact installation while still outperforming stock setups. Replacement performance air filters let you upgrade within the factory airbox without changing any tubing, which works well for vehicles where airbox location is optimal.What performance gains can I expect from an air intake upgrade?Gains depend on the vehicle and existing intake setup. Most naturally aspirated vehicles see modest horsepower increases in the 5–15 h...
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Air Intake Systems, Cold Air Intakes & Performance Intake Parts Shop premium air intake systems, cold air intakes, short ram intakes, air boxes, intake components, intake elbows, mass air flow sensors, scoops, snorkels, recharge kits, silicone couplers, and intake hoses at Black Ops Auto Works. This collection is built for enthusiasts looking to improve airflow, throttle response, induction sound, horsepower potential, and under-hood performance across cars, trucks, SUVs, Jeeps, muscle cars, off-road builds, and supercharged HEMI platforms. Whether you are upgrading a daily driver, Dodge Charger, Dodge Challenger, Dodge Durango, Jeep Grand Cherokee, Jeep Trackhawk, Ram TRX, Ram RHO, Toyota Tundra, Chevy Silverado, Chevrolet Camaro, Corvette, BMW, Cadillac CTS-V, Honda, Hyundai, Infiniti, or a custom performance build, our Air Intake Systems collection includes parts designed for fitment, durability, and real-world performance. Air Intake Systems from Top Brands Shop trusted air ...
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Shop K&N Engineering cold air intakes, reusable air filters, oil filters, cabin filters, fuel filters and performance filtration upgrades at Black Ops Auto Works for cars, trucks, SUVs, diesel builds, off-road vehicles, muscle cars, Jeeps, Mopar platforms and custom performance applications. K&N Engineering is one of the most recognized names in automotive filtration and airflow technology. This collection includes K&N cold air intake systems, high-flow replacement air filters, universal clamp-on air filters, drop-in filters, oil filters, cabin air filters, fuel filters, Dryflow filters, filter cleaning kits, intake adapters, air intake accessories and performance filtration parts for street, towing, off-road, diesel and high-performance builds. Shop K&N Engineering Products by Category Find the right K&N performance filtration upgrade using related Black Ops Auto Works categories. Shop cold air intakes, air intake systems, air intake components, automotive air f...
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