Silicone Reducing Sleeve 4" ID to 3.75" ID - Gloss Black
This 4 inch to 3-3/4 inch reducing silicone coupler is 3 inches long. Rated at 350 F continuous. Four-ply poly reinforced silicone for strength. Perfect for air-to-air aftercooler systems and turbocharger/supercharger connections.
Recommended clamps are 94100-0412 on the small end and 94100-0438 on the big end.