AEM Cold Air Intake 21-821DS - Nissan 370Z

by AEM

Save 32%
$ 571.19
$ 387.99
SKU 21-821DS
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  • Increase Horsepower
  • Tuned and dyno-tested to improve acceleration and engine sound
  • Rotomolded Plastic Air Intake 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 21-821DS fits some Nissan 370Z models. See vehicle applications for details.

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. 

AEM 21-821DS Product Specifications

Estimated Horsepower Gain 15 HP @ 7100 RPM
Replacement Filter 21-202DOSK
Air Filter Color Red
Air Filter Material Non-woven Synthetic
Air Filter Outlet Shape Round
Clamps Included 6
Clamp Material Stainless Steel
Clamp Style Regular
Couplers Included None
Product Style AEM Cold Air Intake System
Intake Pipe Color / Finish Black
Intake Pipe Material High-Density Polyethylene
Street Legal In All US States No
TUV Approved (Europe) No
Weight 13.8 lb (6.3 kg)
Product Box Height 15 in (381 mm)
Product Box Length 22.2 in (564 mm)
Product Box Width 14.5 in (368 mm)
California Restricted Not legal for sale or use in California
Mounting Hardware Included Yes
Warranty Limited Lifetime

  • Horsepower gains based on similar vehicle dynamometer test. Results will vary. 
WARNING: Cancer and reproductive harm--www.P65warnings.ca.gov

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