MAD High Flow Filters for BMW F9x X3M/X4M

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.

Features:

• 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.