How hard is it to fit one of these?

Provided you have the correct adaptor to replace the original fuel pressure regulator on the return end of the fuel rail - it's easy, just remember to depressurize the fuel system before you remove anything.

Installing an aftermarket FPR inline with the factory FPR is just asking for trouble IMO.

Reason i ask is have someone selling a brand new Isotta FPR cheap as.

Better off getting someone who knows wat they are doin to install it?

Reason i ask is have someone selling a brand new Isotta FPR cheap as.
Then chances are it won't have the adaptor to go on the magna fuel rail



Better off getting someone who knows wat they are doin to install it?
It really isn't hard. Stand in front of your engine bay, at the right hand end of the front fuel rail you will see the factory fuel pressure regulator, then a hose which is the fuel return line. It also has a vacuum hose which goes from the top of the fuel pressure regulator to the plennum chamber, just after the T/B

So to install an aftermarket one follow these steps:

decide where you are going to mount your new FPR (where it will look best!!! but away from anything that gets really hot is a good idea)

depressurize the fuel system by disconnecting the fuel pump relay, then attempting to start the car about a dozen times

remove factory fuel pressure regulator from the fuel rail

install adaptor to the end of the fuel rail where you previously removed the fuel pressure regulator from

attach high pressure hose (should come with the isotta FPR) to the adaptor at one end, and the inlet of the isotta FPR at the other end

attach the fuel return line which was previously attached to the factory FPR to the outlet of the isotta FPR

attach the vacuum line which was previously attached to the factory FPR to the isotta FPR.

reconnect fuel pump relay, start car, adjust fuel pressure if applicable, then you're done.


I think that pretty much covers it. Once finished - let it idle for a while, keeping an eye out for any signs of fuel leaking, or the smell of fuel after it has been idling for some time.

Can these be benificial for a 2nd gen V6?

There's no real point on any magna unless you're in the vain of TZAboy or perhaps Tuff's new conversion (although the debonair fpr is fine).

Only reason you'd want an aftermarket FPR is to add more fuel pressure, aka bandaid fix to a low fueling problem on an atmo car that's been turbocharged/supercharged instead of doing it right with bigger injectors etc..

if your car has enough mods to req more fuel pressure you'd already have a piggyback/ecu to adjust the fueling anyway. It'll just make you run rich (unless you keep it at the stock pressure, then it's wank-factor, or if your stock fpr dies, it's bling replacement).

There's no real point on any magna unless you're in the vain of TZAboy or perhaps Tuff's new conversion (although the debonair fpr is fine).

Only reason you'd want an aftermarket FPR is to add more fuel pressure, aka bandaid fix to a low fueling problem on an atmo car that's been turbocharged/supercharged instead of doing it right with bigger injectors etc..

if your car has enough mods to req more fuel pressure you'd already have a piggyback/ecu to adjust the fueling anyway. It'll just make you run rich (unless you keep it at the stock pressure, then it's wank-factor, or if your stock fpr dies, it's bling replacement).

:stoopid: I have done some recent research on these to see if i needed one, and could not come up with a reson for it. Having said that, if it is good value and you want a bit of under bonnet bling...go for it.