Silicone CAC Hump Hose HOT,High Temp 6-ply Aramid Reinforced,5" - 6" ID,8" Long HPS 5" - 6" (127mm - 152mm) x 8" Long High Temp 6-ply Aramid Reinforced Silicone Charge Air Cooler CAC Hose Coupler Hot Side Bellow meet and exceed SAEJ20 industry standards, designed and engineered to provide a connection between engine mounted charge air system components.