Description

The AEM 21-685C 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 Civic SI and Acura ILX 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 driver-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 gunmetal gray powder coated finish. This air intake system was developed to accommodate the engine's factory emissions control devices including the mass air flow sensor, a couple replacement silicone breather hoses as well as a replacement radiator 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 21-685C vehicle applications to determine the legal status for each vehicle.

Additional Attributes:

GTIN: 00024844259981
Air Box Included: No
Air Filter Color: Red
Air Filter Material: Non-woven Synthetic
Air Filter Outlet Shape: Round
Air Filter Washable: Yes
CARB EO Number: D-670-21
Clamp Color/Finish: Natural
Clamp Material: Stainless Steel
Clamp Style: Mini
Clamps Included: 11
Coupler Color/Finish: Not Applicable
Couplers Included: None
Estimated Horsepower Gain: 6.27 HP @ 5100 RPM
Horse Power Increase: 6 HP
Intake Pipe Color / Finish: Gunmetal Gray
Intake Pipe Material: Aluminum
Intake Pipe Ports: All intake tube ports needed for the specified applications are included
Mass Air Flow Sensor Adapter Included: Yes
Mounting Hardware Included: Yes
Oil Included: No
Package Material: Paperboard
Package Type: Box
Product Style: AEM Cold Air Intake System
Prop 65 – Short Label: WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov
Prop 65 (C, R or CR): CR
Prop 65 Warning Label: https://www.knfilters.com/images/l/prop65.jpg
Prop 65 Yes/No: Yes
Replacement Filter: 21-203DK
RPM: 5100
Street Legal In All US States: Yes
TUV Approved (Europe): No
Warranty: Limited Lifetime
Weight: 8.2 lb (3.7 kg)