If i was me ide move the "T" for the boost guage to maybe the vac pipe going to the clocks,
If your gauge develops a leak it cant be good for the fuel pressure regulator :wink:
Every little helps!
I fitted one to my G60 and she feels abit sharper when you put the foot down but i wouldnt say she's up on power!
I bought it done already but i think a dremell was used