Fuel Pressure Regulator question
 

I wonder if someone has used one of those adjustable fuel pressure regulators that have a gauge instead of OEM regulator. The OEM regulator for my Protege is quite expensive and these adjustable FPRs on e-bay could possibly save me some bucks.
Can they be tuned to the pressures for the little 1.5L engine? Are they reliable for years to come?
Thanks in advance!-tan