Mishimoto Performance Air Intake Kit for 2021-2026 BMW M2/M3/M4 (G8X) - MMAI-G80-21

Fits 2021-2026 BMW M2, M3, and M4 (S58B30) including Competition, xDrive, CS, and CSL models.

Maximize the efficiency of your S58 engine with the Mishimoto Performance Air Intake Kit. While the factory G8X intake system is capable, this kit is engineered to eliminate airflow bottlenecks using precision rotational-molded thermoplastic airboxes. This material selection is critical for thermal management, as it significantly reduces engine bay heat soak compared to aluminum alternatives, ensuring a denser, cooler air charge reaches the turbochargers. The design incorporates two additional inlet ports that draw air from the wheel wells, further increasing volume without compromising filtration.

Flow bench testing confirmed a substantial reduction in restriction, measuring 13% on the driver-side intake tract and 22.8% on the passenger-side. For filtration, Mishimoto utilizes dual high-flow oiled filters that offer increased surface area over the restrictive OEM panel filters. This bolt-on upgrade is designed to work safely with the factory ECU tune and provides a pronounced increase in turbocharger spool and bypass valve acoustics.

• Direct bolt-on fitment for 2021-2026 BMW G8X chassis
• Reduces intake restriction by up to 22.8% on the passenger side and 13% on the driver side
• Rotational-molded thermoplastic airboxes resist heat soak and maximize internal volume
• Includes dual high-flow oiled air filters for improved flow and filtration
• Utilizes additional air ports for increased cool-air entry
• Retains safe operation on factory ECU calibration
• Manufacturer Part Number: MMAI-G80-21