well i have a 90 turbo and i want instal my aftermarket fuel pressure regulator. However i noticed the adaptors that came with the kit does not match the upper rail. I there a certain round fitting i need to buy, thanks

 

So you have a S4 or custom fuel rail now?

Check this out.

There are the threaded parts for a S4 rail.

 

Yeah, I run the parallel fuel mod, but I used barbs and hose. Not the best way, but infinately less expensive then AN fittings.

I run the AEM 1:1 FPR.

 

stock rail, damm that a good diagram, thanks

 

I am on stock rails..

 

nice diagram and what aftermarket fpr can you run that setup on and where can you find it

 

Well Rat is running the AEM one.

I am using Aeromotive FPR1000

 

you'll need a set of S4 rails though.....