Boost gauge fitting?

[Slam Wagon]

I think you might be able to get to it through the off side inner arch. Still jack up, wheel off, arch liner out, squeeze hand an tools in, cut hands to death, get covered in oil and grime. Swear and sweat over it and have a join that is forever hard to get to and check.

If your going to tee in get a boost controler and put it at the same time.