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I would also highly recommend putting them in. Honestly, you hope that you never really need them, as you car should always have the same boost and same fuel pressure under WOT. However, you want them there so you can detect right away if something is not right. It will also help you diagnose the problem if one should arise. They are definately worth the couple hundred dollars for a decent boost/vac. gauge and F.P. gauge.
How many are using boost and fuel gauges with there prochargers?My car is at ecs now and i am try to decide whether or not to get these gauges.Mike
If you have a supercharger, a fuel pressure guage is a critical safety device. If your fuel pressure drops drastically on WOT, you know to "get off of it" ASAP. The boost guage is less critical, because it is a monitoring device that will let you know if /when there might be a leak or defect in the blower's system that requires attention, because something is cheating you outa the boost you deserve...So, Mike, it's like the old American Express Card slogan: "don't leave home without'em"...