Fitting boost guage ready for stage 2

[Midnightclub]

You could do.. you'd have to actually drill and tap the inlet manifold itself though as you change the elbow to a different when going stage 2.. Most people just drill and tap the elbow as it's easier to remove and cheaper to replace should you f*ck it up

On a sidenote.. i didn't remove anything when drilling and tapping it, just put a shit tonne of grease around the drill bit to pick up swarf