50°C [-58°F] to 260°C [338° F]. 7 bar 102 psi. 3 ply Reinforced Polyester Silicone. Full 4 piece intercooler kit which includes hoses from the turbo to intercooler and egr valve to intercooler. Hoses as shown in the diagram above in picture 2. Available in blue, black and red. Fits: BMW E39 530d & 525d Upgraded silicone hose developed as a direct replacement for the original intercooler hoses which is prone to failure. Manufactured here in the UK at our premises in Derbyshire using the highest qulaity silicone material. Available in Black, Blue and Red. Green and Orange available at 20% extra cost.