Vibrant Performance 11865 Straight Hump Tubing Coupler, 3.5-Inch Inlet to 3-Inch Outlet

The Vibrant Performance 11865 Tubing Coupler is a straight hump-style transition hose designed to connect tubing with different outside diameters in performance air-intake, intercooler, and charge-air-cooling applications. It features a 3.5-inch inlet and 3-inch outlet, providing a dependable transition between components while accommodating movement and vibration in the connected system.
Constructed from durable silicone, this coupler is engineered to handle demanding under-hood environments and repeated thermal cycling. Its black finish provides a clean, professional appearance and complements a wide range of custom and replacement plumbing installations. The flexible hump design helps reduce stress on connected tubing, making it suitable for systems where engine movement or alignment changes may occur.
The Vibrant Performance 11865 is supplied as an individual coupler and is intended for use with compatible tubing and properly sized clamps, which are sold separately unless otherwise specified. Its straight configuration supports a clean installation with minimal routing complexity, making it a practical choice for turbocharger, intercooler, intake, and other high-performance air-transfer systems. Verify tubing outside diameters and clearance requirements before installation.

Features:

• Brand: Vibrant Performance

• Part Number: 11865

• Design: Straight hump tubing coupler

• Inlet Size: 3.5 inches

• Outlet Size: 3 inches

• Length: 6 inches

• Material: Silicone

• Color: Black

• Application: Connects tubing with different outside diameters in intake, intercooler, and charge-air systems

• Quantity: One coupler