What is the best fuel pressure gauge to get?
I want one that i can mount inside my car but i also want one thet reads in PSI.

 

I dont know what all of the big name companies(greddy, hks, defi, ect) read it in, but i guess it would be in bar or metric form. But i would asume that autometer or other "american" based companies would have what your looking for.

 

The DEFI D-Gauge reads psi, and also looks close to the stock gauges.

 

Mine is autometer

 

is it a good idea to have a fuel psi guage? right now i just have a boost guage, water temp, and exhaust temp...do i need more?

 

Depends on your mods. If your car is fairly stock, I'd leave it alone. If your fairly to heavily modded, I'd consider getting one. For a single turbo FD, it's a necessity.

 

not if you have a wideband afr meter