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21-818C AEM Cold Air Intake System
Special Price
$299.99
Regular Price
$349.99
In stock
SKU
AEM-21-818C
The AEM 21-818C 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 Nissan Sentra models. Air enters the system through an oversized AEM DryFlow synthetic washable air filter. This oil-less filter is designed to have outstanding air flow, filtration and performance. It is then relocated to the driver-side wheel well to take advantage of cooler air temperatures. The intake tubing is constructed from mandrel-bent aluminum featuring a durable gunmetal gray powder coated finish. This Air Intake System was developed to accommodate the engine's factory emissions control devices including the mass air flow sensor. 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 21-818C vehicle applications to determine the legal status for each vehicle.
- Increased horsepower
- Tuned and dyno-tested to improve acceleration and engine sound
- Low restriction aluminum tubing
- Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
- Washable and reusable oil-free filter media
- AEM Lifetime Limited Warranty
Estimated Horsepower Gain | 15 HP @ 6000 RPM |
Replacement Filter | 21-2157DK |
Air Filter Color | Red |
Air Filter Material | Non-woven Synthetic |
Air Filter Outlet Shape | Round |
Clamps Included | 3 |
Clamp Material | Stainless Steel |
Clamp Style | Regular |
Couplers Included | None |
Product Style | AEM Cold Air Intake System |
Intake Pipe Color / Finish | Gunmetal Gray |
Intake Pipe Material | Aluminum |
Street Legal In All US States | No |
TUV Approved (Europe) | No |
Weight | 11.4 lb (5.2 kg) |
Product Box Height | 11.63 in (295 mm) |
Product Box Length | 24.38 in (619 mm) |
Product Box Width | 12.25 in (311 mm) |
California Restricted | Not legal for sale or use in California |
Mounting Hardware Included | Yes |
Warranty | Limited Lifetime |
No cross references found for this part
DIY Level
Easy Moderate Advanced
Tools Needed
Wrench, Extension, Flat Blade Screwdriver, Allen Wrench
Installation Time
90 Minutes
Resources:
Installation PDF
Installation Instruction Sheet Dyno Chart - 2017 NISSAN SENTRA 1.6L - 15HP IncreaseAEM Products
Engineered to outperform

Air Intake Systems
Custom-engineered tubes deliver better airflow than you get with a stock intake. More air means better performance.

Air Filters
Using cotton gauze instead of typical folded paper, our filters increase airflow while providing excellent engine protection.
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