Vehicle Fitment

  • 2016-2021 Honda Civic 2.0L L4 (K20C2) -- Sedan and Coupe

Fitment Notes

  • Fits 10th gen (FC) Civic with naturally aspirated 2.0L K20C2 engine
  • CARB EO: D-670-24 -- 50-state legal
  • Retains factory MAF sensor and engine vent line
  • No ECU tune required -- no check engine light
  • Easy install with common hand tools

Features

  • AEM Cold Air Intake -- designed, tuned, and dyno-tested for the Civic 2.0L
  • Estimated +7 HP gain at 5,500 RPM over stock
  • Oversized AEM Dryflow synthetic air filter (oil-free, 100,000-mile service life)
  • Heat shield seals against hood to block hot engine bay air
  • Mandrel-bent aluminum tube tuned for maximum airflow
  • Gunmetal gray powder coat finish
  • Oil-free filter media sheds dirt under vibration -- no oiling needed
  • Made in the USA

Specifications

  • Part Number: 21-792C
  • Brand: AEM Induction Systems
  • Product Line: Cold Air Intake System (C.A.S.)
  • Type: Cold Air Intake
  • Estimated HP Gain: +7 HP @ 5,500 RPM
  • Intake Tube: Mandrel-Bent Aluminum, Gunmetal Gray Powder Coat
  • Air Filter: AEM Dryflow Synthetic (Red, Tapered Cylinder)
  • Replacement Filter: AEM 21-2027DK
  • CARB EO: D-670-24
  • Made in USA
  • Warranty: AEM Lifetime Limited Warranty
  • UPC: Not publicly available

Included Components

  • AEM Dryflow synthetic air filter
  • Mandrel-bent aluminum intake tube
  • Heat shield
  • Edge trim
  • Coupler hose
  • Steel clamps (5)
  • Mounting hardware kit
  • Literature pack with installation instructions

Product Description

The AEM 21-792C Cold Air Intake System is a bolt-on performance upgrade for the 2016-2021 Honda Civic equipped with the naturally aspirated 2.0L K20C2 engine. Designed, tuned, and dyno-tested by AEM engineers, this intake delivers an estimated 7 horsepower gain at 5,500 RPM by replacing the restrictive factory airbox and intake tract. An oversized Dryflow synthetic air filter sits in the original airbox location, protected by a heat shield that seals against the hood to block hot engine bay air. Cool, dense air flows through a mandrel-bent aluminum tube tuned in length and diameter to match the engine's intake resonance. The oil-free Dryflow filter provides outstanding filtration with up to a 100,000-mile service life before cleaning is needed. This system retains all factory emissions devices and carries CARB EO D-670-24 for 50-state legal use on applicable models. Made in the USA and backed by AEM's Lifetime Limited Warranty.



Primary Product Image