The S55 twin-turbo engine powering the M2 Competition, M3, and M4 F8X uses two air filter boxes to feed the turbos with fresh air, but the OE boxes use small panel filters that are genuinely restrictive to airflow. do88's design goal was straightforward but often overlooked by competitors: the system had to remain fully enclosed, so it doesn't draw hot air from the engine bay the way many aftermarket intakes do. Pulling warm engine bay air directly translates to higher intake air temperatures, and do88's own testing across their entire F8X product range shows the power band is directly tied to both IAT and turbo inlet restriction.
The result is a complete performance air intake system engineered for easy drop-in fitment, achieving 769 CFM airflow at 0.025 bar/0.36psi pressure drop, a genuine 13% improvement over the stock 678 CFM. On the dyno, this translates to +20hp and +40Nm in the mid-range RPM band. The BMC filters used are regenerable for long service life rather than a one-time-use component.
Works with: Factory mounting points and cold air ducting. Maintains an enclosed design throughout to avoid drawing heated engine bay air.
Why Choose This Intake System
Fully enclosed design, doesn't draw hot engine bay air like many open aftermarket intakes
769 CFM airflow, a genuine 13% improvement over the stock 678 CFM
Documented dyno gains of +20hp and +40Nm in the mid-range RPM band
Regenerable BMC filters for long-term reusable service life
Easy drop-in fitment, engineered around do88's own testing across their wider F8X product range
