This 6.6L Duramax VGT Weld On Billet Aluminum Compressor Outlet Cone to 3" V-Band Flange is CNC machined from 6061-T6 Aluminum in DeKalb, IL USA. Allows DIY fabricators to modify the compressor outlet of an OEM Garret or aftermarket VVT drop in style turbocharger to accept a v-band connection for custom intercooler plumbing rather than the conventional hose outlet. Requires cutting or machining off the hose outlet of your VGT to weld on this component. Intercooler pipe mating flange, clamp, and o-ring seal sold separately. See items WCF100035 or WCF100112.