The Spec aluminum flywheel for 2015–2019 BMW M140i is a lightweight replacement designed to reduce rotating mass compared with stock units, aiding throttle response and engine responsiveness. Intended as a direct-fit drivetrain component for compatible models, this aluminum flywheel supports clutch upgrades and rebuilds where a lighter, high-quality flywheel is preferred for improved drivability and shift feel.
Spec 15-19 BMW M140l Aluminum Flywheel