Ford Sierra RS500 with Dump Valve 1 Boost Silicone Hose Kit Application Ford Sierra RS500 with Dump Valve Hose kit type Boost Silicone Hose Kit Qty of hoses 3 This Ford Sierra RS500 with Dump Valve Boost Silicone Hose Kit is made to the highest standards of quality and durability by renowned UK manufacturer Roose Motorsport. Designed for high performance and reliability, it’s ideal for replacing old rubber hoses in your vehicle and adding a sleek new look. Choose from a wide range of colours to suit your car, allowing you to create your perfect custom high-performance cooling plumbing solution. You can also choose between a branded or unbranded finish. Our Roose Motorsport cooling hose kits are compatible with the latest OAT/HOAT organic acid antifreeze formulas, eliminating the risk of corrosion. This Ford hose kit also comes with a lifetime guarantee.