45 Degree Transition Hose 3.5in I.D. to 4in

The 45 Degree Transition Hose 3.5in I.D. to 4in by Vibrant Performance is an essential component for automotive enthusiasts looking to enhance their custom builds, turbo installations, and high-flow engine modifications. This transition hose effectively bridges diameter changes in intake or intercooler piping systems, allowing for flexible routing in tight engine bays without the need for rigid metal elbows.

Constructed from durable reinforced silicone, the 45-degree angle design minimizes turbulence and pressure drop compared to multiple 90-degree bends, optimizing airflow dynamics for both naturally aspirated and forced-induction applications. The hose transitions smoothly from a 3.5-inch inner diameter inlet to a 4-inch outlet, accommodating upgrades from smaller factory piping to larger-diameter tubing without creating flow restrictions.

This hose is ideal for those upgrading supercharged platforms or integrating larger-diameter intercoolers, as it adapts to non-standard plumbing configurations while maintaining structural integrity under boost pressure and thermal cycling. Vibrant Performance's engineering ensures consistent wall thickness and precise bore sizing to handle boost levels and sustained operating temperatures without deformation or leakage.