Mishimoto MMCP-2590BK 2.5", 90 Degree Coupler, Black Length: 3 Thickness: 4mm ID: 2.5 OD: 2.8 100% silicone construction Heat-resistant embedded fibers High heat and pressure tolerances Mishimoto Lifetime Warranty Thickness: 4 millimeter Length: 3 inch Outlet: 2.5 inch Inlet: 2.5 inch