Diameter:4 inch Material:Aluminum Model Number:KG01 Origin:Mainland China OEM NO.:NOT OEM Color:Black/Red/Blue Size:2" /2.5" /2.75" /3" /3.25" /3.5" /4" Features:EASY TO INTALL Type:Upgrade Kit Application: Universal fit for 2" 2.5" 2.75" 3" 3.25" 3.5" 4" Turbo Exhaust Downpipes Piping. Specification: 100% quality assurance tested, more responsive, less expensive, easier to install. Suite of modular, flexible connectors ideal for turbo intake charge piping. Includes a Billet Aluminum clamp, a pair of Aluminum weld ferrules (with O-Rings). Burst pressure rating of 800 PSI- Withstands up to 400 deg F. Choice of Blue or black or Red Anodized finish. Not A Direct Bolt On Item. For 2" 2.5" 2.75" 3" 3.25" 3.5" 4" Turbo Exhaust Downpipes Piping. These Aluminium clamp flange are designed for welding to your pipes and clamping exhaust components together, and together with the Aluminum quick release clamp. Material & Color: Material: made of high quality Aluminum. Color: Black/Red. (We also have Blue color,if you need it,note on the order) Package Included: 1x Clamp Kit. (100% Brand New Never Used Or Installed)