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AEM Induction Cold Air Intake System for 2008-2015 Mitsubishi Lancer

Part # 21-678C

  • Precision-tuned and dyno-validated to enhance throttle response, sharpen acceleration, and improve overall engine efficiency, helping maximize horsepower and drivability.
  • Creates a deeper, more aggressive induction tone that highlights the intake system’s improved airflow.
  • Features low-restriction intake tubing that increases air velocity and high-volume airflow for maximum performance gains.
  • Equipped with a long-life, high-capacity air filter capable of up to 100,000 miles before servicing (depending on driving conditions), reducing maintenance while maintaining strong, clean airflow.
  • Utilizes washable, reusable, oil-free synthetic filter media that preserves airflow efficiency, traps harmful contaminants, and provides long-term value over disposable filters.

Description

The AEM 21-678C 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 Mitsubishi Lancer Evolution, MR and GSR 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 located in the original air box space and is protected by a replacement air box which is designed to reduce intake air temperature and increase horsepower. The intake tubing is constructed from 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, air bypass valve and engine vacuum lines as well as a replacement rubber inlet hose. The wide cone 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).

Specifications

Air Box IncludedNo
Air Filter ColorRed
Air Filter MaterialNon-woven Synthetic
Air Filter Outlet ShapeRound
Air Filter WashableYes
CARB EO NumberD-670-26
Clamp Color/FinishNatural
Clamp MaterialSteel
Clamp StyleRegular
Clamps Included5
Coupler Color/FinishNot Applicable
Couplers IncludedNone
Estimated Horsepower Gain17 HP @ 4100 RPM
Intake Pipe Color / FinishGunmetal Gray
Intake Pipe MaterialAluminum
Intake Pipe PortsAll intake tube ports needed for the specified applications are included
Mass Air Flow Sensor Adapter IncludedYes
Mounting Hardware IncludedYes
Oil IncludedNo
Package MaterialPaperboard
Package TypeBox
Product StyleAEM Cold Air Intake System
Replacement Filter21-203DK
Street Legal In All US StatesLegal for use in all 50 states.
TUV Approved (Europe)No
Weight9 lb (4.1 kg)
UPC / GTIN00840879018917
WarrantyLimited Lifetime warranty

Fits these vehicles

YearMakeModelSubmodelEngineNote
2008MitsubishiLancerEvolution GSR, Evolution MR2.0L I4California Air Resources Board Exempt: Yes; CARB EO: D-670-26; AEM - Metal Intake System; Gunmetal Gray (CAS)
2010MitsubishiLancerEvolution GSR, Evolution MR, Evolution MR Touring, Evolution SE2.0L I4California Air Resources Board Exempt: Yes; CARB EO: D-670-26; AEM - Metal Intake System; Gunmetal Gray (CAS)
2011MitsubishiLancerEvolution GSR, Evolution MR, Evolution MR Touring2.0L I4California Air Resources Board Exempt: Yes; CARB EO: D-670-26; AEM - Metal Intake System; Gunmetal Gray (CAS)
2012 - 2013MitsubishiLancerEvolution GSR, Evolution MR2.0L I4California Air Resources Board Exempt: Yes; CARB EO: D-670-26; AEM - Metal Intake System; Gunmetal Gray (CAS)
2014MitsubishiLancerEvolution, Evolution GSR2.0L I4California Air Resources Board Exempt: Yes; CARB EO: D-670-26; AEM - Metal Intake System; Gunmetal Gray (CAS)
2015MitsubishiLancerEvolution Final Edition, Evolution GSR, Evolution MR2.0L I4California Air Resources Board Exempt: Yes; CARB EO: D-670-26; AEM - Metal Intake System; Gunmetal Gray (CAS)