MST B48 & B46 Air Intake For BMW F Chassis 230i, 320i, 330i, 420i, 430iThe MST Cold Air Intake System (BW B4801) is a perfect upgrade for enhancing the performance of your BMW F2x and F3X models equipped with the B48 2. 0L engine. Here's a quick breakdown of why this intake system is a great choice for boosting performance: Features Maximized Airflow: The MST Cold Air Intake is designed to optimize airflow into the engine, which is key to increasing engine performance. By increasing the volume of cool, dense air entering