The Mishimoto Audi S4 Silicone Turbo Hose Kits are made by combining high grade silicone and heat-resistant embedded fibers to provide efficient heat reduction and increased pressure tolerance. Designed and engineered for a direct OEM fit, the Mishimoto Audi S4 Silicone Turbo Hose Kit is the perfect replacement to the stock S4 hoses. The kit is available in black, blue and red to suit your style.Direct fit for 1997-2002 Audi A4Maximum Temperature: 330°FConstructed with high grade silicone and heat-resistant embedded fibersIncreases heat and pressure toleranceMishimoto Lifetime Warranty