Im looking to install a FPR on my s4, & need some advice on how to do it or any tips that anyone has.
Ive done a search, but had trouble finding specifics about the install in a S4.
Also pics of a setup would be awesome.

 

look where is stock FPR and just install it same way if you are not going to change anything else.......

http://fc3spro.com/TECH/MODS/FUEL/fpr.htm

 

first tip- disconnect the battery

second tip- is to work on a cold engine

third tip- don't prime (pressurize)the fuel system by turning the car on... no need to spray fuel everywhere

fourth tip - use new copper washers

fith tip - after the part is re installed make sure the vacuum reference source is connected

and

sixth tip - pressure test the system to check for leaks

 

OK. What kind of FPR?

 

I was told to look for a 1:1 rising rate FPR, Apparently SARD are a decent brand

 

You've been misinformed. A 1:1 FPR is not rising rate, that's what the 1:1 means. You don't need a RR-FPR anyway, just use the right sized injectors.

Why do you think you need a new FPR? What pump are you using? Have you measured you fuel pressure through the load range?

 

Im using the stock injectors still with a 255ltr/hr walbro intank replacement fuel pump. The guy Im getting the tune done by said that I'll get around the 190rwkw b4 the injectors can give any more safely, but he said if I had a FRP that he could get it upto 200-220rwkws safely. Im not fussed too much about trying to squeeze the extra kw's out of the stock injectors, as I will upgrade later when I have the cash, but If Im going to need a FPR later then I might as well install one now.

 

Installation depends on the regulator and how you are plumbing it. If using AN fittings, then all you need to do is remove the stock FPR, install the appropriate metric to AN fitting on the rail (either 12x1.25 or 14x1.75 I think) and plumb to the regulator. If the regulator has barb fittings, then you need to install a barb onto the fuel rail by replacing the pressure regulator with a banjo bolt.