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Description
AEM Induction 21-721C FITS:AEM 11-13 Mini Cooper 1.6L Black Cold Air Intake System Cold Air IntakesThe AEM 21 721C 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 Mini Cooper S, S Clubman and John Cooper Works models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter
The AEM 21-721C 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 Mini Cooper S, S Clubman and John Cooper Works 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 located in the original air box space and is protected by a replacement air box with a fully-opened hood scoop which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from mandrel-bent aluminum featuring a durable black 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 vacuum line port. The 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 21-721C vehicle applications to determine the legal status for each vehicle.Installation Instructions
User 1
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011 | Mini | Cooper | Base |
| 2012-2013 | Mini | Cooper | Coupe John Cooper Works |
| 2012-2013 | Mini | Cooper | Coupe S |
| 2011-2013 | Mini | Cooper | John Cooper Works |
| 2011-2013 | Mini | Cooper | John Cooper Works Clubman |
| 2013 | Mini | Cooper | John Cooper Works GP |
| 2013 | Mini | Cooper | Roadster |
| 2012-2013 | Mini | Cooper | Roadster John Cooper Works |
| 2012-2013 | Mini | Cooper | Roadster S |
| 2011-2013 | Mini | Cooper | S |
| 2011-2013 | Mini | Cooper | S Clubman |
| 2011 | Mini | Cooper Countryman | Base |
| 2012 | Mini | Cooper Countryman | S |
| 2012 | Mini | Cooper Countryman | S ALL4 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
quick and easy fit
Size: 1.9" x 9.9" x 11.4"
Instructions made it a very quick and easy fit
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Reviewed in the United States on March 17, 2026
★★★★★ 5
Nice air filter
Replaced my K&N filter with this KAX filter. Same performance and better mileage.
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Reviewed in the United States on April 13, 2024
★★★★★ 5
A Great Filter (Installed on a 2014 Acura RDX)
I installed this on a 2015 Acura RDX and it has been a fine replacement for the original air filter. The filter offers a good value and resembles the filter that it replaced and seems to be an equivalent replacement in every way. It fit into the housing perfectly and was just as easy to replace as the original filter was. The white color of the filter also makes it easy to see if an excess of dirt has built up on the filter.
I'd recommend this filter. The materials are good, it offers equivalent functionality, and great value for the money.
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Reviewed in the United States on April 16, 2025
★★★★★ 5
Excellent quality and price
The picture above is of two different brand engine air filters. One is a Fram Extra Guard and the other is the KAX filter, which costs half as much. Can you tell which one is the cheaper KAX filter? There may be a difference in material that is not visible, but they feel and look the same. It seems like a safe bet to try out the KAX and see how well it performs/lasts.
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Reviewed in the United States on May 25, 2024
★★★★★ 5
Just Right
Fits just right. The paper filter material seems to be the same quality as the brand name filter I took out with the only percievable difference is price and packaging. One nice thing here is that once taken out of the box, the filter is wrapped in light weight plastic so you don't get the new filter dirty when taking out the old one. Just unwrap it prior to installation for a clean install. Hope this helps.
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Reviewed in the United States on April 22, 2024