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The AEM 21-799C is a cold air intake system for the 2013–2016 Nissan Sentra with the 1.8L four-cylinder. It replaces the factory air box and intake tube with a mandrel-bent aluminum tube in gunmetal gray powder coat and an oversized oil-free Dryflow synthetic filter mounted down in the driver-side wheel well to draw cooler outside air. AEM dyno-tunes each application and keeps the factory mass air flow sensor and emissions connections, and the filter is rated to go up to 100,000 miles between cleanings. It suits Sentra owners who want a modest power and sound gain with a washable filter; it is not a tune, and the 1.8L gains are small next to turbo cars.
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Lowest price we've seen: $369.99 on Nov 13 at Amazon. Tracked across 1 store since Nov 13.
Owners of the 21-799C generally report a louder intake note and slightly sharper throttle response, with easy bolt-on fit on the Sentra. Most say the power gain is mild and the main benefit is sound and the reusable filter.
The AEM 21-799C Cold Air Intake System replaces the restrictive factory air filter, intake tubing and air box assembly. It is designed to increase horsepower and torque. It was designed, tuned and dyno-tested to fit specific Nissan Sentra models.
Air enters through an oversized AEM Dryflow synthetic washable air filter. The filter sits in the space of the original air box, above the driver-side wheel well, where it pulls in cooler outside air. The intake tube is mandrel-bent aluminum with a durable gunmetal gray powder coated finish.
The system works with the engine's factory emissions control devices, including the mass air flow sensor. The tapered, cylinder-shaped Dryflow filter uses oil-free synthetic media. It can go up to 100,000 miles before cleaning is needed, depending on driving conditions.
