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Part:   21-818C

AEM 21-818C Cold Air Intake

AEM Cold Air Intake System
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.8
 
  • 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

The AEM 21-818C fits some Nissan Sentra models. See vehicle applications for details.
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.

[More Information on AEM Cold Air Intake Systems]
Specifications AEM 21-818C Product Specifications
Estimated Horsepower Gain15 HP @ 6000 RPM
Replacement Filter21-2157DK
Air Filter ColorRed
Air Filter MaterialNon-woven Synthetic
Air Filter Outlet ShapeRound
Clamps Included3
Clamp MaterialStainless Steel
Clamp StyleRegular
Couplers IncludedNone
Product StyleAEM Cold Air Intake System
Intake Pipe Color / FinishGunmetal Gray
Intake Pipe MaterialAluminum
Street Legal In All US States No
TUV Approved (Europe)No
Weight11.4 lb (5.2 kg)
Product Box Height11.63 in (295 mm)
Product Box Length24.38 in (619 mm)
Product Box Width12.25 in (311 mm)
California RestrictedNot legal for sale or use in California
Mounting Hardware IncludedYes

Horsepower gains based on similar vehicle dynamometer test. Results will vary.
Reviews Product Reviews

Travis White from Sandy, Utah
May 30, 2018 - Part 21-818C
Mostly good but had a big weld chunk on the inside that I had to file off before I could insert the plastic piece into the lower tube.
Maxime Belisle from Sorel-Tracy, Canada
September 29, 2017 - Part 21-818C
Perfect fit. Amazed by my Nismo, sounds like a totally new car. Totally satisfied. Noticeable gain of power.
Maxime Belisle from Sorel-Tracy, Canada
September 29, 2017 - Part 21-818C
Amazed by the sound of my car. Perfect fit. More than satisfied. My Nismo is a totally new car since I installed it.