4" to 2.5" ID Gloss BlackThis 90 degree silicone elbow is 4" ID on one end and 2 1 2" ID on the other and can be used anyplace you need a reducing 90 degree bend. Handles 350F continuous and is perfect for intercooler aftercooler and turbocharger applications. The 4" ID leg is short to allow use in a compact space. Five ply reinforced silicone for high strength. We now recommend all silicone elbows be 5 ply or better. Thick 7 32" wall construction. Recommended clamps are
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