Audi S1 Boost Hose KitA set of four silicone boost hoses for the Audi S1. Forge Motorsport design these hoses so they can withstand pressures that can be experienced on tuned and re chipped engines. They will long outlast the original hoses and with our limited lifetime warranty on all Forge products, you can be sure these hoses won't let you down. This set of hoses are available in red, blue or black meaning you can find the perfect colour to match your car. Simply select