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AEM Induction Cold Air Intake System for 2019-2026 Nissan Altima

Part # 21-878DS

  • Precision-tuned and dyno-validated to enhance throttle response, sharpen acceleration, and improve overall engine efficiency, helping maximize horsepower and drivability.
  • Creates a deeper, more aggressive induction tone that highlights the intake system’s improved airflow.
  • Features low-restriction intake tubing that increases air velocity and high-volume airflow for maximum performance gains.
  • Equipped with a long-life, high-capacity air filter capable of up to 100,000 miles before servicing (depending on driving conditions), reducing maintenance while maintaining strong, clean airflow.
  • Utilizes washable, reusable, oil-free synthetic filter media that preserves airflow efficiency, traps harmful contaminants, and provides long-term value over disposable filters.

Description

This Performance Air Intake System allows your engine to breathe more air compared to the restrictive factory air intake housing. It is designed, tuned and dyno-tested to produce more horsepower and torque. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air fl ow, filtration and performance. The air intake tube is constructed from mandrel-bent aluminum featuring a durable silver powder coated finish. A custom shaped heat shield with lid is included. 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). This Air Intake System is backed by AEM's Lifetime Limited Warranty.

Specifications

Air Box IncludedNo
Air Filter ColorRed
Air Filter MaterialNon-woven Synthetic
Air Filter Outlet ShapeRound
Air Filter WashableYes
California RestrictedNot legal for sale or use in California
Clamp Color/FinishNatural
Clamp MaterialStainless Steel
Clamp StyleWorm Gear
Clamps Included5
Coupler Color/FinishBlack
Couplers Included2
Estimated Horsepower Gain9.84 HP @ 3920 RPM
Intake Pipe Color / FinishSilver
Intake Pipe MaterialAluminum
Intake Pipe PortsAll intake tube ports needed for the specified applications are included
Mass Air Flow Sensor Adapter IncludedYes
Mounting Hardware IncludedYes
Oil IncludedNo
Package MaterialCorrugated
Package TypeBox
Product StyleAEM Cold Air Intake System
Replacement Filter21-2073DK
Street Legal In All US StatesNot legal for sale or use in California on any pollution controlled motor vehicle.
TUV Approved (Europe)No
Weight13.6 lb (6.2 kg)
UPC / GTIN00024844387141
WarrantyLimited Lifetime warranty

Fits these vehicles

YearMakeModelEngineNote
2019 - 2021NissanAltima2.5L I4California Air Resources Board Exempt: No
2022 - 2026NissanAltima2.5L I4California Air Resources Board Exempt: No; AEM - Metal Intake System; Gunmetal Gray (CAS)