2-1/2in ID to 2-3/4in ID Silicone 90 Deg Transiti

The 2-1/2in ID to 2-3/4in ID Silicone 90 Deg Transition by Vibrant Performance is a critical intake or exhaust ducting component designed for custom engine builds, turbo installations, and performance modifications. This transition adapter bridges two different hose diameters at a 90-degree angle, making it essential for routing coolant lines, intercooler piping, or exhaust tubing in tight engine bay layouts. Whether you're building a forced-induction setup or reconfiguring stock ducting for a custom intake manifold, this silicone elbow accommodates the diameter step-up from 2.5 inches to 2.75 inches with precision engineering.

Constructed from high-temperature silicone, this transition coupler resists heat cycling and maintains flexibility under sustained boost pressure or coolant flow. The 90-degree bend geometry allows effective space-saving routing in engine compartments where straight sections would create packaging conflicts. Silicone construction provides superior vibration damping compared to rigid aluminum or plastic alternatives, reducing noise transmission into the cabin and lowering stress on adjacent hose connections. The stepped ID design ensures smooth flow transitions that minimize turbulence and pressure drops across the coupling, critical for maintaining intercooler efficiency or preventing coolant bypass in high-performance cooling systems.

This adapter is ideal for enthusiasts fabricating custom intake manifolds, upgrading turbo piping systems, or reconfiguring engine bay plumbing during engine swaps. It's commonly used in forced-induction builds where OEM ducting doesn't accommodate aftermarket turbo placements or intercooler core sizes. Installation requires hose clamps at both inlet and outlet—standard 2.5-inch and 2.75-inch band clamps secure the connection and prevent boost or coolant leakage. The lightweight design (0.82 lbs) minimizes under-hood weight, and the compact dimensions allow integration into space-constrained environments typical of turbocharged or supercharged engine conversions. Compatible with both radiator coolant hoses and turbocharged intake charge piping.