AEM 21-781DS 13-15 Mercedes CLA250 L4 2.5L Silver Cold Air Intake

  • AEM Cold Air Intake System


  • Increased horsepower and torque
  • Tuned and dyno-tested to improve acceleration and engine sound
  • Easy to install using commonly available tools
  • Air filter lasts up to 100,000 miles before cleaning is required (depending on driving conditions)
  • Washable and reusable oil-free filter media
  • Roto-molded, aerodynamic AEM air box
  • AEM Lifetime Limited Warranty
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AEM Airintake System
11.9 lbs
35.2 × 23.1 × 9.8 in
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The AEM 21-781DS 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 Mercedes Benz CLA250 models. Air enters the system from the factory fresh air inlets, through replacement air ducts and into a roto-molded, aerodynamic AEM air box containing an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. This air intake system was developed to accommodate the engine’s factory emissions control devices including the ECU. 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 easy to install with commonly available tools and it 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 21-781DS vehicle applications to determine the legal status for each vehicle.

Estimated Horsepower Gain 10 HP @ 3300 RPM
Replacement Filter 21-1015DK
Air Filter Color Red
Air Filter Material Non-woven Synthetic
Air Filter Outlet Shape Round
Clamps Included No Clamps Included
Clamp Material No Clamps Required
Clamp Style No Clamps Required
Couplers Included None
Product Style AEM Cold Air Intake System
Intake Pipe Color / Finish None
Intake Pipe Material Not Applicable
CARB EO Number D-670-24
Street Legal In All US States See Vehicle Applications
TUV Approved (Europe) No
Weight 12.6 lb (5.7 kg)
Product Box Height 9.81 in (249 mm)
Product Box Length 36.31 in (922 mm)
Product Box Width 22.81 in (579 mm)
Mounting Hardware Included Yes
Warranty Limited Lifetime

Additional information

11.9 lbs
35.2 × 23.1 × 9.8 in

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