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AEM Brute Force HD Intake System 21-9021DC for 2001-2004 GMC Sierra/Chevy Silverado

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Model#21-9021DC
ManufacturerAEM Intakes

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If you’re looking to give your diesel engine a serious boost, the AEM 21-9021DC Brute Force HD Diesel Air Intake System is worth your attention. This isn’t just another part; it’s designed specifically for the GMC Sierra 2500 HD, 3500, and Chevrolet Silverado 2500 HD, 3500 models from 2001 to 2004. By swapping out your restrictive factory air filter and intake housing, you’ll notice gains in horsepower and torque that you can actually feel.

The heart of this system is the extra-large AEM Dryflow synthetic washable air filter. It’s all about airflow, and this filter has got you covered. With a height of 9 inches and a round outlet that's 4 inches wide, it’s built to let your engine breathe. Plus, you can run it for up to 100,000 miles before needing a cleaning, depending on how you drive. And the best part? No oiling required—just rinse and reuse.

The intake tubing is made from mandrel-bent aluminum, finished in a sleek gunmetal gray that not only looks good but is also durable. It fits right in the original air box space and comes with a heat shield to keep those intake temperatures down, which is crucial for performance. This setup accommodates all your factory emissions control devices, including the mass air flow sensor, so you won’t run into any issues there.

Installation is straightforward. You can tackle it with common tools, and AEM backs it up with a Lifetime Limited Warranty, so you know they stand by their product. Just a heads up, some AEM intakes aren't street legal in California, so make sure to check the legal status for your specific vehicle.

Features

Air Box Included: No
Air Filter Color: Red
Air Filter Height: 9 in (229 mm)
Air Filter Material: Non-woven Synthetic
Air Filter Outlet Length: 4 in (102 mm)
Air Filter Outlet Shape: Round
Air Filter Outlet Width: 4 in (102 mm)
Air Filter Washable: Yes
CARB EO Number: D-670-15
Clamp Color/Finish: Natural
Clamp Material: Steel
Clamp Style: Regular
Clamps Included: 5
Color: Gunmetal Gray
Intake Pipe Inlet Length: 26 in (660 mm)
Intake Pipe Inlet Shape: Round
Intake Pipe Inlet Width: 3.5 in (89 mm)
Intake Pipe Material: Aluminum
Intake Pipe Outlet Length: 16 in (406 mm)
Intake Pipe Outlet Shape: Round
Intake Pipe Outlet Width: 4 in (102 mm)
Mass Air Flow Sensor Adapter Included: Yes, when required
Mounting Hardware Included: Yes
Oil Included: No Filter Oil Required
Warranty: Limited Lifetime
Weight: 12.6 lb (5.7 kg)

Notes:

Products Fitment:
Chevrolet Silverado 2500 2001-2004
Chevrolet Silverado 3500 2001-2004
GMC Sierra 2001-2004

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Make Vehicle	Model	Year
2001-2004 Chevrolet Silverado 2500	Silverado 2500	2001-2004
2001-2004 Chevrolet Silverado 3500	Silverado 3500	2001-2004
2001-2004 GMC Sierra	Sierra	2001-2004

AEM Intake

AEM intake offers the very best cold air intake systems on the market, providing drivers with everything they need to get the most out of their vehicle. At Vivid Racing, we are proud to offer our customers AEM cold air intake systems, providing this trusted and reliable brand to all types of drivers.

Whether you are part of a professional race team or just like to push your car to the limit, an AEM intake system is a welcome addition to your vehicle.

What Is an AEM Cold Air Intake System?

An AEM cold air intake system is specifically designed to increase the volume of cold air flowing into your engine as you drive. The thinking behind this is that cold air is much denser than warm air. Therefore, if there is more cold air in your engine, there is more air in general, which also means that there is more oxygen. A higher amount of oxygen present in a car engine increases the potency of combustion, which can increase the power and efficiency of your engine.

What Are the Benefits of an AEM Intake System?

An AEM intake kit maximizes the amount of power you can get from your engine. This increase in power will also help you conserve fuel and increase your fuel efficiency, saving you money at the gas station. In a sense, an AEM intake system helps your car and engine â€œbreatheâ€ more efficiently, allowing it to reach its full potential.

Why Should I Choose an AEM Intake Kit?

AEM is regarded as one of the best aftermarket intake systems on the market, combining quality materials, cutting-edge technology and reliable design to help drivers around the globe improve the power of their engine. All AEM cold air intake systems are engineered to increase your carâ€™s torque and horsepower, and any AEM intake kit comes with a lifetime limited warranty.

Purchase an AEM Cold Air Intake From Vivid Racing Today

Take your driving experience to the next level by purchasing an AEM cold air intake from Vivid Racing. Weâ€™ll help you find an AEM intake and air filter that perfectly fits your specific needs. To learn more or to order an AEM intake kit, contact Vivid Racing by calling (480) 966-3040.

Aem Lifetime Limited Warranty- This Limited Warranty Gives You Specific Legal Rights And You May Also Have Other Rights, Which Vary From State To State. [This Limited Warranty Can Also Be Found Online At Www.Aemintakes.Com/Warranty. We Limit The Duration And Remedies Of All Implied Warranties, Including, Without Limitation, The Warranties Of Merchantability And Fitness For A Particular Purpose To The Duration Of This Express Limited Warranty. Some States Do Not Allow Limitations On How Long An Implied Warranty Lasts. What Does This Warranty Cover? This Warranty Covers Defects In Materials And Workmanship Of Your Aem Air Intake System Or Aem Oe Replacement Filter (The "Product"), With The Exceptions Stated Below.

Aem One-Year Limited Warranty - This Limited Warranty Gives You Specific Legal Rights And You May Also Have Other Rights, Which Vary From State To State. This Limited Warranty Can Also Be Found Online At Www.Aemintakes.Com/Warranty . We Limit The Duration And Remedies Of All Implied Warranties, Including, Without Limitation, The Warranties Of Merchantability And Fitness For A Particular Purpose To The Duration Of This Express Limited Warranty. Some States Do Not Allow Limitations On How Long An Implied Warranty Lasts. What Does This Warranty Cover? This Warranty Covers Defects In Materials And Workmanship Of Your Aem Universal & Special Air Filter Or Aem Accessory (The "Product"), With The Exceptions Stated Below.

Aem 90-Day Limited Warranty - This Limited Warranty Gives You Specific Legal Rights And You May Also Have Other Rights, Which Vary From State To State. This Limited Warranty Can Also Be Found Online At Www.Aemintakes.Com/Warranty. We Limit The Duration And Remedies Of All Implied Warranties, Including, Without Limitation, The Warranties Of Merchantability And Fitness For A Particular Purpose To The Duration Of This Express Limited Warranty. Some States Do Not Allow Limitations On How Long An Implied Warranty Lasts. What Does This Warranty Cover? This Warranty Covers Defects In Materials And Workmanship Of Your Aem Accessory, Clothing, Promotional Material Or Raw Material (The "Product"), With The Exceptions Stated Below.

What Do These Warranties Not Cover:This Warranty Does Not Cover Damage Due To (A) Transportation, (B) Storage, (C) Improper Use, (D) Failure To Follow The Product Instructions Or To Perform Any Preventive Maintenance, (E) Modifications, (F) Unauthorized Repair, (G) Normal Wear And Tear, (H) Any Type Of Racing Or Competition, (I) Any Off-Road Use Or (J) External Causes Such As Accidents, Abuse, Or Other Actions Or Events Beyond Our Reasonable Control (E.G., Acts Of God And Natural Disasters).

What Will Aem Do? We Will Repair Any Product That Proves To Be Defective In Materials Or Workmanship. If Repair Is Not Possible, We Will Either Replace Your Product With A New Product Of Similar Composition And Price, Or Refund The Full Purchase Price Of Your Product, At Our Sole Discretion. There Is No Charge For Inspection.

How Do I Get Service?If You Are Ever Dissatisfied With The Materials, Workmanship Or Performance Of This Product, Just Give Aem A Call At 1-800-992-3000 And We Will Be Happy To Assist You.

Limitation Of Liability The Remedies Described Above Are Your Sole And Exclusive Remedies And Our Entire Liability For Any Breach Of This Limited Warranty. Our Liability Shall Under No Circumstances Exceed The Actual Amount Paid By You For The Product, Nor Shall We Under Any Circumstances Be Liable For Any Consequential, Incidental, Special Or Punitive Damages Or Losses, Whether Direct Or Indirect.