V Band Clamp and Flange Assemblies Size: 2",2.25",2.5",3"3.5",3.75',4" SS304 & Mild ... GT42R, GT42RS turbos. For an instance,3.5" Vband machined flange allows typical weld on application or use the ... extra length and lip built in as a 3.5" ... to seal seamlessly against the face of the flange on the compressor housing.Rush Order:one-two weeksShippingDay ...