AEM Induction Systems / 21-786C

Part #: 21-786C
UPC: 024844364371

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Brand: AEM Induction Systems Series: Cold Air Induction Systems

Description: AEM's Performance Cold Air Intake Systems are designed, tuned and dyno-tested to give your engine more power and acceleration by replacing the restrictive factory air filter, air intake tubing and air box assembly.

This is a Test Product Message for the Air Intakes Category!

Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Description

The AEM-21-786C 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 select Mazda MX-5 Miata 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 heat shield which is designed to reduce intake air temperature and increase horsepower. Attached to the heat shield is an aluminum coolant overflow reservoir that replaces the stock reservoir so that the air intake will fit properly. The air intake tubing is constructed from mandrel-bent 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 and PCV hose. 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.

Features & benefits

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.
Low restriction aluminum tubing

Information

Associated products: AEM-21-2157DK DryFlow Air Filter, AEM-1-1000 Air Filter Cleaner

Application summary

Year	Make / model
2019	Mazda MX-5
2023-2025	Mazda MX-5
2016-2022	Mazda MX-5 Miata
2026	Mazda MX-5 Miata

Specifications

GTIN: 00024844364371
Weight: 8 lb
Height: 12.25 in
Length: 20.25 in
Width: 12.25 in
EO: Not in CA
Life cycle: Available to Order
Alt. part number: AEM-21-786C
AAM brand code: AEK
Warehouse brand code: AEK
AAIA brand code: DSHD

Attributes

AAM Standard Pack: 1
Air Box Included: No
Air Filter Color: Red
Air Filter Element Washable: Yes
Air Filter Material: Non-woven Synthetic
Air Filter Outlet Shape: Round
Air Filter Washable: Yes
Alternate Part Number: AEM-21-786C
California Proposition 65: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
California Restricted: Not legal for sale or use in California
Clamp Color: Black
Clamp Color/Finish: Black
Clamp Material: Stainless Steel
Clamp Quantity: 3
Clamp Style: Regular
Clamps Included: 3
Coupler Color: Black
Coupler Color/Finish: Black
Couplers Included: 1
Estimated Horse Power Gain: 8 HP @ 6000 RPM
Estimated Horsepower Gain: 8 HP @ 6000 RPM
Filter Color: Red
Filter Material: Non-woven Synthetic
Horse Power Increase: 8 HP
Intake Pipe Color: Gunmetal Gray
Intake Pipe Color / Finish: Gunmetal Gray
Intake Pipe Material: Aluminum
Intake Pipe Ports: All intake tube ports needed for the specified applications are included
Item Weight: 8.000 lbs. (3.6 kg)
Mass Air Flow Sensor Adapter Included: No
Mass Air Flow Sensor Included: Mass Air Flow Sensor Adapter Included When Required
Mounting Hardware Included: Yes
Oil Included: No Filter Oil Required
Package Material: Corrugated
Package Type: Box
Product Box Height: 12.250 in. (311mm)
Product Box Length: 20.250 in. (514mm)
Product Box Width: 12.250 in. (311mm)
Product Style: AEM Cold Air Intake System
RPM: 6000
Replacement Filter: 21-2157DK
Snorkel Included: No
Street Legal: No
Street Legal In All US States: Not legal for sale or use in California on any pollution controlled motor vehicle.
System Type: Cold Air Induction
TUV Approved (Europe): No
Title: AEM AEM-21-786C Cold Air Intake System
Warranty: Limited Lifetime
Weight: 8 lb (3.6 kg)