Universal 4.0" Silicone Straight Coupler (FR-UNI-SIL-4)

The Full-Race 4.0" Silicone Straight Coupler is a highly durable and essential component designed for making reliable, straight-line connections in large-diameter turbo intake systems. This coupler is specifically sized for use on 4.0-inch turbo inlets of high-power turbochargers. Constructed from high-quality silicone and featuring a robust 0.110-inch wall thickness, it is built for maximum strength and reliably withstands high boost pressures, high heat, and engine movement without blowing off or tearing.

Features

• Designed for standard, straight-line connections in large-diameter induction systems.
• Features a thick wall of 0.110 inches for reliability under extreme boost and heat.
• Specifically sized for turbos with a 4.0-inch compressor inlet.
• Extremely durable and withstands tearing or blowing off due to engine movement and heat expansion.

Notes

• Perfect for use on the intake tube of high-power turbos.
• Requires appropriate clamps (T-Bolt clamps recommended, sold separately) for secure installation on both ends.

Compatibility Notes

• Designed for 4.0-inch diameter piping and components.

Specs

• Size: 4.0 inches (Inner Diameter)
• Angle: Straight
• Material: Silicone
• Wall Thickness: 0.110 inches