i'm thinking about getting a greddy fuel pressure gauge for my car. how accurate are the electronic fuel pressure gauges? and it shows that the gauge only reads up to 6 bar, that's roughly 85 psi, wouldn't my fuel pressure go upwards of about 140 psi at 8 psi at WOT? if i'm completely misinformed, please correct me...thanks in advance.

 

I'm selliong my used on. It's wired into my car right now actually working just fine.
I payed $195 for it. I'll see it for $130 it's a 60mm peak and hold gauge. The good one ya know..