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Part:   21-9033DS

AEM 21-9033DS Brute Force HD Intake

AEM Brute Force HD Intake System
  • Increased horsepower
  • Tuned and dyno-tested to improve acceleration and engine sound
  • Free-flowing high density polyethylene tube
  • Easy to install using commonly available tools
  • 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 21-9033DS fits some Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD models. See vehicle applications for details.
The AEM 21-9033DS Brute Force HD Diesel Air Intake System produces horsepower and torque gains by replacing the vehicle’s restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific GMC Sierra 2500/3500 HD and Chevrolet Silverado 2500/3500 HD models. Air enters the system through an extra-large AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is located in the original air box space and is protected by a replacement AEM airbox with a logo embossed lid which is designed to reduce intake air temperature and increase horsepower. The intake tubing is an aerodynamically engineered and highly durable polyethylene tube. This air intake system was developed to accommodate the engine’s factory emissions control devices including the mass air flow sensor and a replacement AEM filter minder. The oval 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). The air intake system is easy to install with commonly available tools and it 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 21-9033DS vehicle applications to determine the legal status for each vehicle.

[More Information on AEM Brute Force HD Diesel Cold Air Intake Systems]
Specifications AEM 21-9033DS Product Specifications
Estimated Horsepower Gain15 HP @ 2330 RPM
Air Filter ColorRed
Air Filter Height8 in (203 mm)
Air Filter MaterialNon-woven Synthetic
Air Filter Outlet ShapeRound
CARB EO NumberD-670-15
Clamp MaterialStainless Steel
Clamp StyleRegular
Clamps Included2
Couplers Included1
Intake Pipe Color / FinishBlack
Intake Pipe MaterialHigh-Density Polyethylene
Product Box Height15.75 in (400 mm)
Product Box Length24.38 in (619 mm)
Product Box Width17.38 in (441 mm)
Product StyleAEM Brute Force HD Intake
Replacement Filter21-2258DK
Street Legal In All US StatesYes
TUV Approved (Europe)No
Weight15 lb (6.8 kg)

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