If you're looking to give your factory intake system a boost, Dinan High Flow Drop-in Replacement Filters are just the upgrade you need! These filters are designed to enhance airflow, helping your engine achieve peak performance and efficiency right away!

While the stock paper filters do an okay job, they can hold back your performance aspirations due to the materials used. Plus, they need to be replaced multiple times throughout your vehicle's life, which can really add up in maintenance costs. Who wants that? Thankfully, Dinan has a smart and cost-effective solution! The High Flow Drop-in Replacement Filters are crafted from four layers of cotton gauze, allowing for improved airflow and reduced pressure drop compared to the stock filters. This means your engine can generate the same—or even more—power without working as hard.

And the best part? The oiled cotton media means these filters are washable and reusable, ensuring your engine stays clean and runs smoothly for years to come.

If you're considering a complete Dinan intake system but it's not feasible right now, these High Flow Drop-in Replacement Filters are a fantastic option to keep your performance goals on track!

General D401-0042 Filter Dimensions: 237mm x 213mm (9.33" x 8.39")
Compatible OEM Part #Cross Reference: 13727843283 & 13727843284

• Less restrictive and better flowing than stock, maximizing engine performance and efficiency.
• Direct replacement for the stock air filter.
• Four layers of proprietary high flow oiled cotton gauze for exceptional filtration.
• Washable and reusable for the life of your engine.
• Set of 2 filters included.
• Quick and easy installation.

• Brand: Dinan
• Emission Code: 2
• Labor Time (Hours): 0.25
• Product Type: Air Filter
• Part Number: D401-0042

• BMW M4 2015-2020
• BMW M6 2012-2018
• BMW M6 Gran Coupe 2014-2019
• BMW M5 2013-2016
• BMW M3 2015-2018
• BMW M2 2019-2021