K & N® 21-484B Engine Cold Air Intake Performance Kit
Manufacturer #21-484B
K & N® 21-484B Engine Cold Air Intake Performance Kit
Manufacturer #21-484B
$306.65
$429.31
Save $122.66 (29%)
(4) In Stock
Get it between Wed, Aug 20 - Fri, Aug 22, 2025
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Only secure payments| SKU | KN21484B |
|---|---|
| Brand | K & N® |
| Part Name | Engine Cold Air Intake Performance Kit |
| Part | # 21-484B |
| Quantity Per Vehicle | 1 |
| Pack of | 1 |
| Condition | New |
- AEM Cold Air Intake System
- AEM's Performance Cold Air Intake Systems are designed, tuned and dyno-tested to give your engine more power and acceleration by replacing the restrictive factory air filter, air intake tubing and air box assembly.
- The AEM 21-484B Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Mazda 6 models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is relocated to the driver-side wheel well which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from mandrel-bent aluminum featuring a durable blue powder coated finish. This air intake system was developed to accommodate the engine's factory emissions control devices including the mass air flow sensor and crankcase breather hose. The tapered cylinder shaped AEM Dryflow air filter is made from an oil-free, synthetic filter media that can be used for up to 100,000 miles before cleaning is needed (depending on driving conditions). The air intake system is backed by AEM's Lifetime Limited Warranty. Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards, while others are 50 state legal. View the 21-484B vehicle applications to determine the legal status for each vehicle.
| Air Box Included | No |
|---|---|
| Air Filter Color | Red |
| Air Filter Height | 5.25 in (133 mm) |
| Air Filter Large End Diameter | 6 in (152 mm) |
| Air Filter Material | Non-woven synthetic |
| Air Filter Outlet Length | 2.75 in (70 mm) |
| Air Filter Outlet Shape | Round |
| Air Filter Outlet Width | 2.75 in (70 mm) |
| Air Filter Washable | Yes |
| CARB EO Number | D-670-15 |
| Clamp Color/Finish | Natural |
| Clamp Material | Steel |
| Clamp Style | Regular |
| Clamps Included | 4 |
| Coupler Color/Finish | Not applicable |
| Couplers Included | None |
| Intake Pipe Color / Finish | Blue |
| Intake Pipe Inlet Length | 28.5 in (724 mm) |
| Intake Pipe Inlet Shape | Round |
| Intake Pipe Inlet Width | 2.75 in (70 mm) |
| Intake Pipe Material | Aluminum |
| Intake Pipe Outlet Length | 28.5 in (724 mm) |
| Intake Pipe Outlet Shape | Round |
| Intake Pipe Outlet Width | 2.75 in (70 mm) |
| Mass Air Flow Sensor Adapter Included | Mass air flow sensor adapter included when required |
| Mounting Hardware Included | Yes |
| Oil Included | No filter oil required |
| Package Material | Paperboard |
| Package Type | Box |
| Product Style | Aem cold air intake system |
| Prop 65 (C, R or CR) | Cr |
| Prop 65 - Short Label | Warning: cancer and reproductive harm - www.p65warnings.ca.gov |
| Prop 65 Warning Label | Https://www.knfilters.com/images/l/prop65.jpg |
| Prop 65 Yes/No | Yes |
| Replacement Filter | 21-202dk |
| Street Legal In All US States | Yes |
| Title | Aem aem-21-484b aem cold air intake system |
| TUV Approved (Europe) | No |
| Warranty | Limited lifetime |
| Weight | 6 lb (2.7 kg) |
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund.
Warranty Policy
Right parts, guaranteed. If you find any defects, simply notify us within the warranty period, and we’ll take care of it. Check out our Warranty Policy for more details.
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