AEM 21-889C Cold Air Intake for 2019-2021 Nissan Altima 2.0L Turbo

Vehicle Fitment

• 2019-2021 Nissan Altima (2.0L turbocharged L4 gasoline - Edition ONE, Platinum, SR trims)

Features

• Cold air intake system designed and dyno-tested for Altima 2.0L turbo engines
• Improves airflow compared to restrictive factory intake
• Oversized AEM Dryflow synthetic washable air filter - oil-free design
• Washable filter media can last up to ~100,000 miles between cleanings
• Mandrel-bent aluminum intake tube with durable gunmetal gray powder-coat finish
• Heat shield designed to reduce intake air temperatures for denser air charge
• Improves throttle response, torque, and horsepower over stock system
• Backed by AEM limited lifetime warranty

Specifications

• Part number: AEM 21-889C
• Application: Cold air intake system
• Fitment years: 2019-2021
• Vehicle: Nissan Altima
• Engine: 2.0 L turbocharged inline-4 gasoline
• Estimated horsepower gain: ~10.95 HP @ ~4297 RPM
• Air filter material: Dryflow synthetic, washable & reusable
• Air filter outlet shape: round
• Replacement filter: AEM 21-2073DK
• Clamps included: 7 stainless steel worm-gear clamps
• Couplers included: 3
• Intake material: mandrel-bent aluminum
• Weight: ~10.4 lb
• Street legal status: **not legal for sale or use in California** on pollution-controlled vehicles

Included Components

• 1x AEM Dryflow synthetic washable air filter
• 1x Mandrel-bent aluminum intake tube (gunmetal gray)
• 1x Heat shield
• 7x Stainless steel worm-gear clamps
• 3x Couplers
• Mounting hardware kit
• Installation instructions

Product Description

The AEM 21-889C Cold Air Intake System is a performance-tuned induction upgrade engineered exclusively for **2019-2021 Nissan Altima models** equipped with the **2.0 L turbocharged 4-cylinder engine** (Edition ONE, Platinum, SR trims). Replacing the stock intake assembly with AEM's optimized mandrel-bent aluminum tube and oversized Dryflow synthetic washable air filter, this system increases airflow into the engine, resulting in improved throttle response, enhanced torque delivery, and measurable horsepower gains over the stock intake. The included heat shield helps reduce intake air temperatures by protecting the filter from engine bay heat, contributing to denser air charge and more efficient combustion.

Featuring a Dryflow filter that requires no oil and can provide up to approximately **100,000 miles of service between cleanings**, the 21-889C simplifies maintenance while delivering robust performance gains, with an estimated **~10.95 HP increase** over the factory setup. Installation is straightforward using common hand tools and the supplied clamps, couplers, and hardware. Backed by AEM's limited lifetime warranty, this intake system is a popular upgrade for Altima owners seeking enhanced performance and engine sound. Always verify local emissions regulations before purchasing, as this intake **is not legal for sale or use in California or other CARB-restricted states** on pollution-controlled vehicles.