FTO AUSTRALIA

Hey I am getting the RPW Extarctors and flex pipe combo and fitting a Cat Back exhaust.

1. On the RPW website It says that you need a Fuel Pressure Regulator when you change the whole exhaust due to leaning out and the creation of flat spots. Is this true? and could i get away with using a generic one cos their kit is $350 when you can have other good ones for about $120-150.

2. Can anyone suggest a Good, cost effective CAT go between the flex pipe and catback?

Cheers

I am also interested in this

well i got both fitted and can't feel the Fuel Pressure Regulator do much at all even when i boost it up

I got the RPW extractors to fit right up to the stock cat, and there isn't much of a flatspot, I got a GPX and i reacon it make it more responsive.

After I put my pipes on, I got a bit of pinging, so I wacked on a Malpassi 1.7:1 rising rate regulator. Had it tuned in & she was good to go Bought it off Ebay, was less than $200 from memory

What is the difference between a Rising Rate Regulator and a normal Fuel Pressure Regulator.

Also are they brand specific or are they just generic for all cars with attachement for Mitsi Fuel Rails?

Cheers

Rising rate raises the fuel pressure 1.7 psi for every 1 psi of manifold air pressure (or reduced vacuum) it sees and a normal one only raises the fuel pressure 1 psi (1 : 1)

The SARD one is a rising rate......plenty on ebay too.

As far as your cat question goes, I recommend a metal stainless steal mesh inside cat.
A friend got it for $380 fitted (3") and I will do the same...