The MMR Performance Silicone Intake Hose for the B58-powered F-series BMW models, including the M140i, M240i, 340i, and 440i, is engineered to optimize airflow from the intake to the turbo. This upgrade enhances induction noise and improves the aesthetics of the engine bay.
When installed with the standard turbo elbow and airbox—especially when paired with the MMR High-Flow Filter—the MMR Intake Hose provides a noticeable performance boost. However, the most significant gains are achieved when combined with the MMR Air Intake or other aftermarket intake setups.
This hose is a direct replacement for the factory plastic 'bellows' pipe, which is known to be restrictive and cause turbulent airflow. By eliminating these inefficiencies, the Silicone Intake Hose delivers measurable power gains.
Crafted from high-quality silicone, the hose features a large diameter for smooth airflow. It is reinforced with silicone elements in key areas, ensuring rigidity and preventing deformation under load or high temperatures.