This K&N filter is a washable, reusable drop-in replacement for the factory panel filter on select Mercedes-Benz V8 and V12 AMG models, sized for a factory air box measuring 12.563in x 5.25in x 1.625in. It installs in place of the disposable paper filter with no other changes.Important Compatibility InformationThis dimension fits multiple Mercedes-Benz AMG V8 and V12 models built between 2011 and 2019, including S-Class, E-Class, CLS, GL, GLE, GLS, ML, SL, and G-Class AMG variants. These engines use two intake filters, so this listing is a set of two identical filters. Confirm your exact model and engine against the site's fitment data before ordering.Features Washable and reusable oiled cotton gauze media Drop-in fit into the factory air box, no other parts required Designed to improve airflow versus the factory paper filter What's IncludedK&N replacement air filters, 12.563in x 5.25in x 1.625in (x2)Product Specifications SKU: K001 33-2474 MPN: 33-2474 GTIN: 024844307453 Filter dimensions: 12.563in O/S length x 5.25in O/S width x 1.625in height Quantity: 2 filters per box Vehicle coverage: select Mercedes-Benz V8/V12 AMG models, 2011-2019 (see fitment data for exact applications) Frequently Asked QuestionsDo I need one filter or two?Your engine uses two intake filters, and this listing already includes both.Can I wash and reuse this filter?Yes, K&N filters in this line are washable and reusable rather than disposable.How do I confirm this fits my specific AMG model?contact your BMP Tuning rep with your exact year, model, and engine to confirm fitment.