AEM Induction 21-685P Engine Cold Air Intake Performance Kit

The AEM 21-685P 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 chrome-like 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 21-685P vehicle applications to determine the legal status for each vehicle.

Resources

Installation Instructions

Resources

Installation Instructions

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
Description_DEF	Engine Cold Air Intake Performance Kit
Description_DES	Cold Air Intake System
Description_EXT	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.
Description_INV	Cold Air Intake System
Description_MKT	The AEM 21-685P 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 chrome-like 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 21-685P vehicle applications to determine the legal status for each vehicle.
Description_SHO	Cold Air Intake Syst
Estimated Horsepower Gain	6.27 HP @ 5100 RPM
height	12.25
Horse Power Increase	6 HP
Intake Pipe Color / Finish	Polished
Intake Pipe Material	Aluminum
Intake Pipe Ports	All intake tube ports needed for the specified applications are included
length	20.25
LTL	N
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 (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
RPM	5100
Street Legal In All US States	Yes
Title	AEM AEM-21-685P Cold Air Intake System
TUV Approved (Europe)	No
Warranty	Limited Lifetime
weight	8.18
weight	8.2 lb (3.7 kg)
width	12.25