MAD BMW F9x X3M X4M High Flow Filters m3 lower control arms The additional air flow supplements

The additional air flow supplements the factory inlet locations on both the left and right air boxes with ambient air from outside of the engine compartment

Fits: 2008-2013 E9x M3 (E90

- 718 GT4 / 718 GT4 RS | 982

Upgrade the side profile of your G20 3 series with a set of performance carbon fiber side skirt extensions

MAD BMW F9x X3M X4M High Flow Filters m3 lower control arms The additional air flow supplementsBoost 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