Description
The AEM 21-406B Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle’s restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Honda Prelude models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is relocated to the passenger-side wheel well which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from mandrel-bent aluminum featuring a durable blue powder coated finish. This air intake system was developed to accommodate the engine’s factory emissions control devices including the engine breather hose. The tapered 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 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 21-406B vehicle applications to determine the legal status for each vehicle.
AEM’s Performance Cold Air Intake Systems are designed, tuned and dyno-tested to give your engine more power and acceleration by replacing the restrictive factory air filter, air intake tubing and air box assembly.
Features
Air Box Included: No
Air Filter Color: Red
Air Filter Height: 5.125 in (130 mm)
Air Filter Large End Diameter: 6 in (152 mm)
Air Filter Material: Non-woven Synthetic
Air Filter Outlet Length: 3 in (76 mm)
Air Filter Outlet Shape: Round
Air Filter Outlet Width: 3 in (76 mm)
Air Filter Washable: Yes
CARB EO Number: D-670-15
Clamp Color/Finish: Natural
Clamp Material: Steel
Clamp Style: Regular
Clamps Included: 7
Color: Blue
Coupler Color/Finish: Not Applicable
Couplers Included: None
Intake Pipe Color / Finish: Blue
Intake Pipe Inlet Length: 55 in (1397 mm)
Intake Pipe Inlet Shape: Round
Intake Pipe Inlet Width: 3 in (76 mm)
Intake Pipe Material: Aluminum
Intake Pipe Outlet Length: 55 in (1397 mm)
Intake Pipe Outlet Shape: Round
Intake Pipe Outlet Width: 3 in (76 mm)
Mass Air Flow Sensor Adapter Included: Mass Air Flow Sensor Adapter Included When Required
Mounting Hardware Included: Yes
Oil Included: No Filter Oil Required
Package Material: Paperboard
Package Type: Box
Product Style: AEM Cold Air Intake System
Prop 65 (C, R or CR): CR
Prop 65 – Short Label: WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov
Prop 65 Warning Label: https://www.knfilters.com/images/l/prop65.jpg
Prop 65 Yes/No: Yes
Replacement Filter: 21-203DK
Street Legal In All US States: Yes
Title: AEM AEM-21-406B AEM Cold Air Intake System
TUV Approved (Europe): No
Warranty: Limited Lifetime
Weight: 8.4 lb (3.8 kg)
Notes:
California Air Resources Board Exempt: Yes; CARB EO: D-670-15; AEM – Metal Intake System; Blue (CAS)
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