02-09 Audi A4 Engine Air Filter - Red
K2 Industries
02-09 Audi A4 Engine Air Filter - Red
Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.
02-09 Audi A4 Engine Air Filter — Red
High-flow engine air filter designed for A4 models, finished in distinctive red. Direct replacement that bolts into your factory airbox without modification. Improves intake flow while maintaining OEM fitment.
Key Features
- Red media finish - Visible through your airbox and adds subtle visual interest without engine bay mods
- Direct airbox fit - No custom brackets, ducting, or airbox modifications required
- High-flow media - Optimized for improved airflow over OEM paper filters
Specs
- Red media construction
- OEM airbox compatible
- Single filter unit
Whats Included
- Engine air filter
Frequently Asked Questions
Will this require any modification to my airbox or intake?
No. This filter mounts directly to your factory airbox using OEM connection points — no cutting, drilling, or adapter brackets needed.
How often do I need to replace this filter?
Service interval depends on driving conditions and air quality in your area. Check your vehicle's service manual for the recommended replacement schedule — typically every 15,000–30,000 miles.
Can I clean and reuse this filter?
This is a disposable filter designed for one-time use. Replace it when airflow drops or visual inspection shows heavy debris accumulation.
Your vehicle
Select a vehicle to check the supplied application records for this part.
Choose or change vehicle →Product reference & ordering help
Supplier & part identification
K2 Industries
| Option | SKU / part reference |
|---|---|
| Standard | K2-2518-AUD-006-EC |
Vehicle compatibility
Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.
Request fitment help →Installation & specifications
Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.
Shipping expectations
Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.
Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information