Feature●Length: 3” Thickness: 4mm ID: 2.5” OD: 3.0” ID: 2.8” OD: 3.4”●100% silicone construction●Heat-resistant embedded fibers●High heat and pressure tolerances●Mishimoto Lifetime WarrantyDescription Mishimoto has developed a 2.5" to 3" Transition Coupler available in black, blue, red, green, purple and white.