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AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - front view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - angle view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - detail view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - installed view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - close-up
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - alternate view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - side view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - rear view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - package contents
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - additional view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - front view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - angle view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - detail view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - installed view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - close-up
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - alternate view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - side view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - rear view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - package contents
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - additional view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - front view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - angle view
AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS for 2009-2020 Nissan 370Z - detail view

AEM Induction Part # AEM21-821DS

AEM 2009+ Nissan 370Z 3.7L Cold Air Intake - 21-821DS

$419.99 USD

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Trusted since 2005 Questions? Email sales@raptorracing.com

The 21-821DS Performance Cold Air Intake System produces horsepower and torque gains by replacing the restrictive air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Nissan 370Z models. This system replaces both the left and right side intakes. The AEM Dryflow synthetic washable air filter does not require oiling and can be used up to 100,000 miles before servicing is needed (depending on driving conditions). The heatshield is a two piece design and also utilizes the factory air ducting. The intake tube is constructed from mandrel bent aluminum and has a durable gray powder coat finish. This air intake system was developed to accommodate the mass air flow sensor and PCV hose. 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 21-821DS vehicle applications to determine the legal status for each vehicle.
Installation Instructions
User 1
Installation Instructions
Installation Instructions

  • Creates a deeper, more aggressive induction tone that highlights the intake system’s improved airflow.
  • 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.
  • Features low-restriction intake tubing that increases air velocity and high-volume airflow for maximum performance gains.
  • Precision-tuned and dyno-validated to enhance throttle response, sharpen acceleration, and improve overall engine efficiency, helping maximize horsepower and drivability.
  • Utilizes washable, reusable, oil-free synthetic filter media that preserves airflow efficiency, traps harmful contaminants, and provides long-term value over disposable filters.

  • Weight: 13.8 lb (6.3 kg)
  • Estimated Horsepower Gain: 15 HP @ 7100 RPM
  • Replacement Filter: 21-202DOSK
  • Clamps Included: 6
  • Intake Pipe Ports: All intake tube ports needed for the specified applications are included
  • Intake Pipe Color / Finish: Black
  • CARB EO Number: D-670-25
  • Intake Pipe Material: High-Density Cross-Linked Polyethylene
  • Clamp Color/Finish: Natural
  • Air Filter Material: Non-woven Synthetic
  • Coupler Color/Finish: Not Applicable
  • Air Filter Color: Red
  • Clamp Style: Regular
  • Air Filter Outlet Shape: Round
  • Clamp Material: Stainless Steel
  • Air Filter Washable: Yes
  • Mass Air Flow Sensor Adapter Included: Yes
  • Mounting Hardware Included: Yes

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Free U.S. standard shipping on qualifying orders $199+

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