MAD S58 High Flow Filters - F97 X3M | F98 X4M
MAD S58 High Flow Filters - F97 X3M | F98 X4M

MAD S58 High Flow Filters - F97 X3M | F98 X4M

Regular price $129.00
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Boost your engine's performance effortlessly with a high-grade air filter upgrade from MAD. With enhanced flow and filtration over the standard OEM paper filters, this budget-friendly upgrade promises noticeable performance gains. It is directly compatible with the factory F97 X3M / F98 X4M airbox, making this set of drop-in high flow air filters your key to unlocking maximum airflow for the platform.


  • More Power: Max gains of 10 WHP and 10 lb-ft of torque
  • More Flow: 15-20% more
  • Designed to fit the factory air box
  • Multi-layered cotton deep pleats for increased flow and superior filtration.
  • Steel wire mesh for strength and resistance to dents.
  • Full set of 4 individual filters.

Horizon Motorsport has one goal: to make our clients happy. We aim to provide the highest level of customer service and the highest caliber parts, all at the most competitive prices. Have a question or concern about a product we sell? Send us an email at


Orders typically ship in 1-2 business days from our location in Los Angeles, CA. Transit time usually ranges from 3-5 business days, depending on where you are located. We offer worldwide shipping, if you need live outside of North America, shoot us an email and we would be happy to give you a quote!

Creating life-long customers.

As a small business we pride ourselves on creating long lasting relationships with our customers who know that they can count on us for any of their BMW needs. At Horizon Motorsport our mission is to provide a unparalleled customer experience to keep our customers coming back.

A Company Owned By Fellow Enthusiasts.

Horizon Motorsport was founded in 2019 in Los Angeles, CA by fellow BMW enthusiasts. We have experience with nearly all makes and models and have been actively involved in the Southern California BMW scene for over 3 years. Our unique insight and experience with the BMW community and other high end European-oriented brands gives us the knowledge and ability to stock only the highest quality parts from the highest quality brands.