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The AEM 21-778C Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing. 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 be in driver-side wheel well which is designed to reduce intake air temperature and increase horsepower. The lower air intake tube is a free-flowing, mandrel-bent aluminum tube with a durable gunmetal gray powder coat finish. The upper air intake tube is a roto-molded, aerodynamically engineered, HDPE tube that insulates the cooler intake air from heat as it passes through the engine bay and into the engine's throttle body. This air intake system was developed to accommodate the Lancer's factory emissions control devices including the mass airflow sensor and PCV 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).
Increased horsepower
Tuned and dyno-tested to improve acceleration and engine sound
Low restriction aluminum lower air intake tube
Aerodynamic, high-density polyethylene upper air intake tube
Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
Washable and reusable oil-free filter media
Estimated Horsepower Gain
12 HP @ 4900 RPM
Replacement Filter
21-2027DK
Air Filter Color
Red
Air Filter Material
Non-woven Synthetic
Air Filter Outlet Shape
Round
Clamps Included
5
Clamp Material
Stainless Steel
Clamp Style
Regular
Couplers Included
1
Product Style
AEM Cold Air Intake System
Intake Pipe Color / Finish
Black
Intake Pipe Material
High-Density Cross-Linked Polyethylene
CARB EO Number
D-670-24
Street Legal In All US States
Not legal for sale or use in California on any pollution controlled motor vehicle. NOTE: Some specific models and years may be legal in CA. Check the CARB status on your vehicle in the applications listings.