Vibrant 11866 CAC Transition Hose Coupler to ID - 4.00 3.00

The Vibrant Performance 11866 is a premium charge air cooler (CAC) transition hose coupler designed to connect mismatched intercooler piping sizes. This reducer coupler features a 4.00-inch inner diameter on one end and a 3.00-inch inner diameter on the other, allowing smooth airflow transition between different pipe diameters in forced induction systems.

Key Features:

• High-quality silicone construction for superior heat resistance and durability
• Reinforced with multiple plies for strength under boost pressure
• Smooth interior for optimal airflow and minimal turbulence
• Flexible design accommodates slight misalignment during installation
• Resistant to oil, fuel, and coolant exposure
• Temperature rated for extreme performance applications

This transition coupler is ideal for custom turbo and supercharger installations where intercooler piping requires step-down connections. The premium silicone material ensures long-lasting performance in high-temperature, high-pressure boosted applications. Recommended for use with quality stainless steel T-bolt clamps for secure, leak-free connections.