Boost gauge fitting?

[titch]

But it would be nice to have a guide on showing how to do it for the people who wanna try this route is what I'm saying

Thats what i mean, thats probably why no one has linked a guide as there probably isn't one, as most people drill and tap the inlet elbow as that pipe is such a pig to get at.

If you really want to do it that way, i would imagine the easiest way would be to jack the car, support it on stands and disconnect the fork from the lower engine mount, move the engine forward slightly and go in from underneath, you should be able to then get access to it, it is a blue pipe about 10cm long, thats the one you need to t into.