Feature●Length: 3” Thickness: 4mm ID: 2.5” OD: 2.75” ID: 2.8" OD: 3.0”●100% silicone construction●Heat-resistant embedded fibers●High heat and pressure tolerances●Mishimoto Lifetime WarrantyDescription Mishimoto has developed a silicone transition coupler that measures 2.5" to 2.75".Available in black, blue, red, green, purple and white.