CNC Aluminum V-Band Kit 2.5" - 63,5mm Perfect for leak free aluminum pipe connections. Can be used on intercooler piping, as well as exhaust connections. Mix and match flanges for stainless to aluminum connections. -Male and Female Interlocking flanges -thick recessed welding flanges for increase weld stength -100% 300 series stainless V band clamp -CNC milled from 6061 T6 Aluminum -High-Temp Silicone O-Ring -Low-profile design for tight spaces -Heavy duty V band, retainers and clamp -All made in the USA