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). 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 21-678C vehicle applications to determine the legal status for each vehicle.

  • Increased horsepower
  • Tuned and dyno-tested to improve acceleration and engine sound
  • Low restriction aluminum tubing
  • Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
  • Washable and reusable oil-free filter media
  • AEM Lifetime Limited Warranty

Specifications

  • Estimated Horsepower Gain: 17.0 HP @ 4100 RPM
  • Replacement Filter: 21-203DK
  • Air Filter Color: Red
  • Air Filter Material: Non-woven Synthetic
  • Air Filter Outlet Shape: Round
  • Clamps Included: 5
  • Clamp Material: Steel
  • Clamp Style: Regular
  • Couplers Included: None
  • Product Style: AEM Cold Air Intake System
  • Air Filter Height: 5.125 in (130 mm)
  • Intake Pipe Color / Finish: Gunmetal Gray
  • Intake Pipe Material: Aluminum
  • CARB EO Number: D-670-21
  • Street Legal In All US States: See Vehicle Applications
  • TUV Approved (Europe): No
  • Weight: 9 lb (4.1 kg)
  • Air Filter Large End Diameter: 6 in (152 mm)
  • 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

Compatibility

  • 2016 Mitsubishi Lancer Evolution 2.0L L4 Gas
  • 2015 Mitsubishi Lancer Evolution 2.0L L4 Gas
  • 2015 Mitsubishi Lancer Evolution GSR 2.0L L4 Gas
  • 2014 Mitsubishi Lancer Evolution 2.0L L4 Gas
  • 2013 Mitsubishi Lancer Evolution GSR 2.0L L4 Gas
  • 2013 Mitsubishi Lancer Evolution MR 2.0L L4 Gas
  • 2012 Mitsubishi Lancer Evolution GSR 2.0L L4 Gas
  • 2012 Mitsubishi Lancer Evolution MR 2.0L L4 Gas
  • 2011 Mitsubishi Lancer Evolution GSR 2.0L L4 Gas
  • 2011 Mitsubishi Lancer Evolution MR 2.0L L4 Gas
  • 2010 Mitsubishi Lancer Evolution GSR 2.0L L4 Gas
  • 2010 Mitsubishi Lancer Evolution MR 2.0L L4 Gas
  • 2010 Mitsubishi Lancer Evolution SE 2.0L L4 Gas
  • 2008 Mitsubishi Lancer Evolution GSR 2.0L L4 Gas
  • 2008 Mitsubishi Lancer Evolution MR 2.0L L4 Gas

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). 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 21-678C vehicle applications to determine the legal status for each vehicle.

  • Increased horsepower
  • Tuned and dyno-tested to improve acceleration and engine sound
  • Low restriction aluminum tubing
  • Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
  • Washable and reusable oil-free filter media
  • AEM Lifetime Limited Warranty
  • Estimated Horsepower Gain: 17.0 HP @ 4100 RPM
  • Replacement Filter: 21-203DK
  • Air Filter Color: Red
  • Air Filter Material: Non-woven Synthetic
  • Air Filter Outlet Shape: Round
  • Clamps Included: 5
  • Clamp Material: Steel
  • Clamp Style: Regular
  • Couplers Included: None
  • Product Style: AEM Cold Air Intake System
  • Air Filter Height: 5.125 in (130 mm)
  • Intake Pipe Color / Finish: Gunmetal Gray
  • Intake Pipe Material: Aluminum
  • CARB EO Number: D-670-21
  • Street Legal In All US States: See Vehicle Applications
  • TUV Approved (Europe): No
  • Weight: 9 lb (4.1 kg)
  • Air Filter Large End Diameter: 6 in (152 mm)
  • 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
  • 2016 Mitsubishi Lancer Evolution 2.0L L4 Gas
  • 2015 Mitsubishi Lancer Evolution 2.0L L4 Gas
  • 2015 Mitsubishi Lancer Evolution GSR 2.0L L4 Gas
  • 2014 Mitsubishi Lancer Evolution 2.0L L4 Gas
  • 2013 Mitsubishi Lancer Evolution GSR 2.0L L4 Gas
  • 2013 Mitsubishi Lancer Evolution MR 2.0L L4 Gas
  • 2012 Mitsubishi Lancer Evolution GSR 2.0L L4 Gas
  • 2012 Mitsubishi Lancer Evolution MR 2.0L L4 Gas
  • 2011 Mitsubishi Lancer Evolution GSR 2.0L L4 Gas
  • 2011 Mitsubishi Lancer Evolution MR 2.0L L4 Gas
  • 2010 Mitsubishi Lancer Evolution GSR 2.0L L4 Gas
  • 2010 Mitsubishi Lancer Evolution MR 2.0L L4 Gas
  • 2010 Mitsubishi Lancer Evolution SE 2.0L L4 Gas
  • 2008 Mitsubishi Lancer Evolution GSR 2.0L L4 Gas
  • 2008 Mitsubishi Lancer Evolution MR 2.0L L4 Gas

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