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Part:   41-1003C

AEM 41-1003C Electronically Tuned Intake

AEM Electronically Tuned Intake System
  • Tuned mass air flow sensor signals
  • Electronic tuning gains additional horsepower and torque
  • Improved throttle response and engine sound
  • Washable and reusable lifetime air filter
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • AEM Lifetime Limited Warranty

The AEM 41-1003C fits some Nissan Altima, and Nissan Altima Coupe models. See vehicle applications for details.
The AEM 41-1003C Electronically Tuned Air Intake System represents the next generation of cold air intake technology resulting in larger horsepower and torque gains for specific Nissan Altima models by precisely tuning mass air flow sensor signals to the engine. The restrictive factory air filter and air intake housing are replaced with this advanced AEM air intake system. Air enters the system through an AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The intake tubing keeps a constant diameter throughout its length allowing larger volumes of air to pass through than some traditional cold air intake systems. The AEM intake tubing is constructed from mandrel-bent aluminum featuring a durable gunmetal gray powder coated finish. This air intake system was developed to also accommodate the engine’s factory emissions control devices including the PCV hose and mass airflow 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). 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 41-1003C vehicle applications to determine the legal status for each vehicle.

[More Information on AEM Electronically Tuned Air Intake Systems]
Specifications AEM 41-1003C Product Specifications
Estimated Horsepower Gain3 HP @ 4900 RPM
Air Filter ColorRed
Air Filter Height5 in (127 mm)
Air Filter MaterialNon-woven Synthetic
Air Filter Outlet ShapeRound
California RestrictedNot legal for sale or use in California
Clamp MaterialSteel
Clamp StyleRegular
Clamps Included6
Couplers Included6
Intake Pipe Color / FinishGunmetal Gray
Intake Pipe MaterialAluminum
Product Box Height11.6 in (295 mm)
Product Box Length24.38 in (619 mm)
Product Box Width12.2 in (310 mm)
Product StyleAEM Cold Air Intake System
Replacement Filter21-203DOSK
Street Legal In All US States No
TUV Approved (Europe)No
Weight16 lb (7.3 kg)

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