AEM 21-792C Cold Air Intake System w/Filter for 2016-2021 Honda Civic 2.0L L4

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.