Does anyone know where I can get a white boost gauge with a white or red back light to match the instruments in the A4 B5 1.8tqs 1999 model year, as I am looking into fitting one probably in the vent pod sometime soon.
Best to get a 30psi gauge.
I run the glowshift one and its mounted in the centre vents in the one closet to the clocks, as for pluming its best to plum it in at the FPR or DV hose i did the FPR as its closest to the bulkhead and isnt as noticeable, then route it through the gromet that houses the servo pipe then through the one on ecu box down into the cabin to your boost gauge location.
Right... so I T-piece it into the vacuum hose on the fuel pressure regulator?
I'd use the blank by the bulkhead feed to the servo rather than risk the fpr one