Click or scroll to zoom
Tap or pinch to zoom
Click or scroll to zoom
Tap or pinch to zoom
21-9021DC | 21-9021DP
- Increased horsepower
- Tuned and dyno-tested to improve acceleration and engine sound
- Low restriction aluminum tubing
- 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
-
Features
-
Videos
-
Instructions
-
Vehicle Fitment
The AEM 21-9021DP Brute Force HD Diesel Air Intake System produces horsepower and torque gains for diesel engines 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 HD, 3500 and Chevrolet Silverado 2500 HD, 3500 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 heat shield which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from mandrel-bent aluminum featuring a durable chrome-like finish.
This air intake system was developed to accommodate the engine’s factory emissions control devices including the mass air flow sensor and air filter restriction gauge. 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.
Specs:
Replacement Filter: 21-2259DK
Air Filter Color: Red
Air Filter Material: Non-woven Synthetic
Air Filter Outlet Shape: Round
Clamps Included: 5
Clamp Material: Steel
Clamp Style: Regular
Couplers Included: None
Product Style: AEM Brute Force HD Intake
Air Filter Height: 9 in (229 mm)
Intake Pipe Color / Finish: Gunmetal Grey or Polished
Intake Pipe Material: Aluminum
CARB EO Number: D-670-15
Street Legal In All US States: Yes
TUV Approved (Europe): No
Weight: 12.6 lb (5.7 kg)
Product Box Height: 14.94 in (379 mm)
Product Box Length: 22.2 in (564 mm)
Product Box Width: 14.5 in (368 mm)
Mounting Hardware Included: Yes
Year
Make
Engine
2004.5
CHEVROLET Silverado 2500 HD
CHEVROLET Silverado 3500
V8-6.6L DSL LB7
2004.5
GMC Sierra 2500 HD
GMC Sierra 3500
V8-6.6L DSL LB7
2001-2003
CHEVROLET Silverado 2500 HD
CHEVROLET Silverado 3500
V8-6.6L DSL
2001-2003
Sierra 2500 HD
Sierra 3500
V8-6.6L DSL
Related products
AEM Boost Display Gauges
AEM
from $170.00
AEM 30-5132 / AEM 30-5137 Ideal for carbureted or EFI vehicles Adjustable backlighting via a dial on the back of the gauge Includes b...
View full details
AEM Boost Display Gauges
AEM
from $163.00
AEM 30-4406 / AEM 30-4408 Ideal for carbureted or EFI vehicles Easy-to-install Plug & Play harness and sensor included 24 green LED displa...
View full details
AEM Water/Methanol Injection Nylon Hose
AEM
$12.00
AEM 35-4500-20 Item Weight3.2 ounces Product Dimensions14 x 14 x 4 inches
AEM Water/Methanol Injection Inline Filter
AEM
$28.49
AEM 30-3003 AEM’s Water/Methanol Injection Filter can filter particulates as small as 40 microns. It protects the working parts of the water/me...
View full details
AEM Water/Methanol Injection 200psi Recirculation Pump
AEM
$134.06
AEM 30-3015 AEM's V2 Water/Methanol Injection Kits For Forced Induction Engines are a proven means for effectively reducing engine inlet air te...
View full details