Mishimoto high Performance intercooler, watercooler, oilcooler and oil-catch cans Silicone Radiator Hose Kit for Subaru WRX / STI / 01-07 / Red Mishimoto high Performance intercooler, watercooler, oilcooler and oil-catch cans Material: Silicone Inner Material: Heat-resistant fibers (embedded) Outer Material: Silicone Color: Red Maximum Temperature: 165°C Inner Diameter: - Hose 1: 38mm - Hose 2: 38mm Outer Diameter: - Hose 1: 46mm - Hose 2: 46mm The Mishimoto Silicone Hose Kit for the Subaru WRX and STI is made from two layers, combining high-quality silicone with embedded heat-resistant fibers to provide effective heat reduction and increased pressure tolerance. All of this, along with an OEM fit! Perfect for your GD chassis Subaru WRX or STI. Mishimoto silicone radiator hoses and connectors will give your engine a unique advantage in performance and appearance. Mishimoto silicone coolant hose kits are made from two layers, combining high-quality silicone with heat-resistant fibers. These provide exceptionally efficient heat reduction, increased pressure tolerance, and lifelong satisfaction. The hoses are resistant to heat, oil, and fuel, making them durable for a lifetime. The inner layer is smooth to improve flow. Mishimoto silicone hose kits are direct OEM replacements. Available in black, blue, red, and partially in other limited colors, they enhance the aesthetic appeal of any engine bay. WARNING: Mishimoto states that the delivery time can be up to 90 days.