There are a lot of options out there or you could go grab one in a junkyard off a mitsubishi or something like that. You could also get a Tial, TurboXS, Raptor, etc. They should all come with the bung to weld into the piping that you mount the valve too. You can weld the valve to the bung or you can use the screws they have on them to hold it in place.