ok I hope you guys can help me...
what pressure are the X20XEV (2 litre ecotec)
and X25XE (2.5L V6) fuel pressure regulators and are they interchangeable.
basically I want more fuel pressure but I don't want an FSE or the like hanging off my engine like a tumour.
if the X25XE valve runs more pressure and can be fitted straight into an X20XEV, I'll go to holden and order myself one!