AEM 06-11 Honda Civic Si Chrome Cold Air Intake | 21-685C

The AEM Cold Air Intake for the 8th Generation Honda Civic Si, AEM has for many years been the leader of Honda performance intakes. This cold air intake is a great intake for nearly anyone who is looking for maximum gains.

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. This intake is carb certified legal.

SPECS:

• Estimated Horsepower Gain        6.27 HP @ 5100 RPM
• Replacement Filter          21-203DK
• Air Filter Color   Red
• Air Filter Material             Non-woven Synthetic
• Air Filter Outlet Shape   Round
• Clamps Included               11
• Clamp Material Stainless Steel
• Clamp Style        Mini
• Couplers Included            None
• Product Style     AEM Cold Air Intake System
• Intake Pipe Color / Finish              Gunmetal Gray
• Intake Pipe Material        Aluminum
• CARB EO Number            D-670-21
• Street Legal In All US States         Yes
• TUV Approved (Europe) No
• Weight 8.2 lb (3.7 kg)
• Product Box Height         12.25 in (311 mm)
• Product Box Length         20.25 in (514 mm)
• Product Box Width          12.25 in (311 mm)
• Mounting Hardware Included     Yes
• Warranty             Limited Lifetime

Fitment:

2006 2007 2008 2009 2010 2011 Honda Civic Si Model only
Coupe and Sedan
K20z3 Motor
FA5 & FG2 Chassis