... layers 3.working temperature:-40 to 250 degree Air-intake silicone hose with 5 holescan be silicone rubber ... blue 9)Colors : red/ blue /pink/white/black /orange /green/Yellow ,also can according to customers request.10 ... We have developed turbo kits, radiator kits ,induction kits,intake kits,coolant kits, boost kits fitting for Subaru, ... logo can be printed on the hose. air intake silicone rubber pipe