Mishimoto MMHOSE-CIV-88HH Honda Civic Silicone Heater Hose 1988-1991, Black Direct fit for 19881991 Honda Civic Maximum Temperature: 330F Constructed with high grade silicone and heat-resistant embedded fibers Increases heat and pressure tolerance Mishimoto Lifetime Warranty Interior Material: Heat-resistant embedded fibers Exterior Material: Silicone Maximum Temperature: 330 F