We're building a new set of twins for the race truck at work. This is my first time building a set. I got the turbo mounted and the hot pipe built today. The turbos are S475 and S510. We're using a ProFab waste gated pedestal and a ProFab 3" shorty LLY bridge. The cold pipe will have V-band flanges on both ends and the hot side intercooler tube will also have a V-band flange at the small turbo. Here's what I got done today.