Mishimoto MMHOSE-E36-92BK BMW E36 (325, M3) Silicone Radiator Hose Kit, 1992-1999, Black Direct fit for 19921999 BMW E36 (325, M3) INNER DIAMETER: 1.57" OUTER DIAMETER: 1.93" Maximum Temperature: 330F Constructed with high grade silicone and heat-resistant embedded fibers Mishimoto Lifetime Warranty Interior Material: Heat-resistant embedded fibers Exterior Material: Silicone Maximum Temperature: 330 F Inner Diameter: Hose 1: 1.57", Hose 2: 1.57" Outer Diameter: Hose 1: 1.93", Hose 2: 1.93"