Upgrade your turbo, supercharger, or intake system with this heavy-duty silicone reducer hose from TenkeAuto. It’s 4-ply reinforced to handle high boost pressure and temperatures from -60°C up to 230°C. The inner diameter reduces from 4” to 3.5” over a 6” length, with a 5mm wall thickness for durability and solid burst resistance. Includes a stainless steel T-bolt clamp with a nylon locknut for a secure, leak-free connection. Perfect for intercooler setups, radiator lines, marine use, or industrial applications. Note: silicone isn’t compatible with fuel or oil – stick to air or coolant lines. Backed by a 12-month warranty and a 30-day no-questions-asked return policy. If you need a reliable, high-performance coupler that won’t let you down under pressure, this one’s a solid pick.