4 Ply Reinforced 57mm 63mm 80mm 102mm Charge Air Cooler Automotive Hump Silicone Hose. 4-Ply Reinforced Construction: Features 4 layers of polyester, aramid, or glass fiber for superior durability. OEM and ODM Services: We offer full customization including 3D design and production from your drawings. Multiple Color Options: Available in Black, Red, Blue, Green, and Yellow to suit various applications. High-Quality Silicone Material: Made from 100% high-quality organic silicone with no toxic taste. Free Sample Availability: Customers can request free samples to verify product quality before ordering. Versatile Automotive Application: Ideal for CAC, turbo chargers, intercoolers, and intake piping systems. Eco-Friendly and Insulating: Features good electrical insulation and is environmentally friendly.