CAC Transition Hose 3.5in Inlet to 3in Out

The CAC Transition Hose 3.5in Inlet to 3in Out by Vibrant Performance is a critical intake ducting component designed for turbo and supercharged engine builds where charge air cooler (CAC) plumbing requires stepped diameter transitions. This hose bridges the gap between mismatched inlet and outlet ports, eliminating air leaks and pressure losses that compromise boost delivery and cooling efficiency. Whether you're upgrading a stock intercooler system or custom-fabricating a high-performance intake manifold, this transition adapter solves common fitment challenges without requiring expensive custom bends or welded fabrication.

Constructed from reinforced silicone with internal spring wire support, this hose accommodates the 3.5-inch inlet-to-3-inch outlet transition while maintaining structural integrity under boost pressure and thermal cycling. Vibrant Performance's proven manufacturing process ensures consistent wall thickness and flexibility for tight engine bay installations, reducing stress on connection points and extending hose life under repeated heat and pressure cycling. The tapered design minimizes turbulence and pressure drop across the transition zone, preserving intercooler effectiveness and supporting aggressive tuning targets without adding complexity to your intake system.

This transition hose benefits builders and tuners working with V6 twin-turbo platforms, LS-based forced induction swaps, and custom intercooler configurations where OEM ducting dimensions no longer apply. Installation requires standard hose clamps at both ends and fits most aftermarket CAC setups without modification to radiator support or headlight assemblies. Weighing just 0.73 pounds with compact overall dimensions of 10.63 x 3.35 x 12.6 inches, it's engineered for bolt-on convenience while delivering the durability and flow characteristics serious tuners demand for reliable street and track duty.