Torque Solution Silicone Intercooler Boost Hose SetApplications: Porsche 911 / 996 Twin Turbo Torque Solution Silicone Intercooler Boost Hose Set is a must have for your Porsche 996 Turbo. They have been designed for optimal flow using high quality 4 layer silicone. They withstand higher boost pressures and heat over the OEM hoses. We also include (4) Black Anodized CNC Billet Aluminum Couplings for a perfect fit and finish. - Eliminates the failure prone rubber hose - (4) 4 Layer Silicone Construction Boost Hoses - (4) Black Anodized CNC Billet Aluminum Couplings - (11) Stainless Steel Worm Gear Clamps - Direct Fitment - Limited Lifetime Warranty PROPOSITION 65 Proposition 65 requires businesses to provide warnings to Californians about significant exposures to chemicals that cause cancer, birth defects or other reproductive harm. WARNING: Cancer and Reproductive Harm.