Product Overview

AEM 02-10 VW Touareg, 02-09 Porsche Cayenne Panel Filter from AEM Induction is identified by manufacturer part number 28-20857. This AEM Dryflow air filter is designed as a direct replacement filtration element for 2007-2010 Audi Q7 and the other applications listed below. It retains the factory airbox layout while providing a precisely shaped sealing surface; verify the dimensions and application details below before ordering.

Key Features

• Designed to replace the compatible factory-style panel filter; verify the complete vehicle application and filter dimensions.
• New AEM Induction component supplied in the configuration shown and described on this page.
• Exact application, dimensions, and included components should be verified before installation.

Fitment

Confirm AEM Induction 28-20857 against the complete vehicle, engine, trim, and every application note before ordering.

• 2005-2006 Audi TT Quattro Base
• 2006 Audi TT Quattro Special Edition
• 2006-2009 Land Rover Range Rover HSE
• 2006-2009 Land Rover Range Rover Supercharged
• 2008 Land Rover Range Rover Westminster Edition
• 2006-2009 Land Rover Range Rover Sport HSE
• 2006 Porsche Cayenne Turbo S
• 2009-2010 Porsche Cayenne Turbo S
• 2013-2014 Porsche Cayenne Turbo S
• 2016-2018 Porsche Cayenne Turbo S
• 2005-2009 Volkswagen Touareg Base
• 2011-2015 Volkswagen Touareg Hybrid
• 2006-2011 Volkswagen Touareg TDI
• 2007-2010 Audi Q7 Base

Use the store vehicle selector and current manufacturer application data for final confirmation.

Specifications

What’s Included

The exact air filters – drop in product identified by AEM Induction 28-20857. Additional filters, tubes, couplers, clamps, heat shields, sensors, hardware, or service supplies are included only when specifically shown or stated.

About AEM Induction

AEM Induction develops vehicle-specific and universal intake, filtration, and supporting components for street and performance applications. Black Ops Auto Works organizes each listing by exact part number and available fitment data to support accurate product selection.

Related Parts

• AEM Nissan 11in O/S L x 6.688in O/S W x 1.438in H DryFlow Air Filter
• AEM Silverado/Sierra/Avalance/Tahoe/Yukon 12.625in O/S L x 10in O/S W x 1.75in H DryFlow Air Filter
• Shop the complete AEM Induction collection

Frequently Asked Questions

What is the 28-20857?

It is the AEM Induction air filters – drop in product described on this page in the listed configuration.

How do I confirm fitment?

Match the complete vehicle, engine, trim, intake layout, dimensions, sensors, and every application note before ordering.

Can I select this product by appearance alone?

No. Similar-looking intake and filter components can use different dimensions, connections, sensor provisions, mounting points, or applications.

What is included?

Only the components specifically identified on this product page are included; related filters, tubes, couplers, clamps, hardware, or service supplies may be separate.

Does an intake require tuning?

Tuning requirements vary by vehicle and intake configuration. Review the product notes and consult a qualified tuner when airflow or sensor behavior changes.

How should I maintain the filter?

Follow the filter-specific manufacturer instructions. Cleaning and treatment procedures vary by filter media and should not be assumed.

Is this product new?

Yes. The item condition is new unless this page explicitly states otherwise.

What should I verify before checkout?

Confirm the application, dimensions, included items, filter type, sensor provisions, emissions notes, and installation requirements.

Installation Instructions

1. Confirm AEM Induction 28-20857 and the complete application before disassembly.
2. Inspect the component and compare every tube, filter, coupler, clamp, sensor provision, mounting point, and included item before modifying the vehicle.
3. Follow current AEM Induction instructions and the vehicle service procedure for removal, installation, fasteners, sensors, hoses, and wiring.
4. Keep intake components sealed and routed away from heat, sharp edges, moving parts, and direct water exposure where applicable.
5. Check all connections, start the vehicle, inspect for leaks or warning lights, and verify safe operation before driving.

California Proposition 65 Warning

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.