1. Female of high strength stainless steel, anti-corrosion and durable performance. Good in reducing exhaust noise and temperature. Extend the service life of the exhaust muffler system. good replacement for your old 2.It is not easy to form ponding.fit for special car, good engagement. Easy to change exhaust without welding.Precise design and easy installation. 3. Design style, a great accessory to dress up your rides. Professional installation recommended. Good performance in reducing exhaust noise and temperature. 4. Extend the life of the exhaust silencer system. A good replacement for your old or broken one. Color: 60mm to 51mm Material: stainless steel Item Type: Auto Exhaust Reducer Connector Tube Product name: Exhaust reducer connector Condition: material: stainless steel : Length: 103mm / 4.05 " Inlet inner diameter: 60.6mm / 2.38 " Inner outlet diameter: 51.6mm / 2 " : Length: 104mm / 4.09 " Interior interior for diameter: 63.5mm / 2.5 " Internal outlet for diameter: 57.5mm / 2.26 " : Length: 102.3mm / 4.03 " Inlet inner diameter: 63.5mm / 2.5 " Inner outlet diameter: 51.8mm / 2 " : Length: 100mm / 3.93 " Inlet inner diameter: 76.2mm / 3 " Inner outlet diameter: 51.6 mm / 2.03 " : Length: 103.5mm / 4.07 " Inlet inner diameter: 76.2mm / 3 " Inner outlet diameter: 57.6 mm / 2.27 " : Length: 102.5mm / 4.03 " Inlet inner diameter: 76.5mm / 3.01 " Outlet inner diameter: 63.5mm / 2.5 " Package Include: 1x Exhaust Exhaust Pipe Pipe Tube Information on additional charges For items shipped internationally, you may be subject to additional charges for VAT and / or customs duties in your country, for more information on these costs, please contact the office customs of your country. Note: 1. Please allow 1-3cm error due to manual measurement.Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3. The clamp can be adjustable and detachable.