Did you know they even make stock-appearing gauges for Volkswagens?...

 Check out this 35-psi boost gauge from NewSouth Performance. It'll be installed in the '02 Jetta TDI we've been tinkering with lately. The gauge comes with 6-feet worth of nylon tubing, the appropriate TDI fitting and electrical connectors, and zip ties. The next question: Will we be able to peg the 35-psi gauge with the Jetta? Our gut tells us yes, as we've been subtly surprised so far with how well the little four-door has responded to the first set of power adders.