marklemac

Hi,

In particular I am after the following info.

My car is a MY02 STI with PPP, so I know the downpipe has been changed and the new one has a sports cat in it, and the back box has been changed.

So what about the middle bit.

According to the Scoobyworld website:



There are 2 bits that make up the centre section.

So, on my car, is there still a cat in the section section aswell as the resinator ?

Long term goal is to perhaps change this bit ?

Is it worth it.

Scoobyworld do a ninja replacement pipe, as do quite a number of other companies.

Advice anyone ?

KJD Mk1

iTrader: (3)

There are 3 cats on a newage, one in the up pipe one in the down pipe and yes one in the centre section.

KJD Mk1

iTrader: (3)

Opps should have said that the 3rd cat is in the first part of the 2 centre sections

MrFlibble

On STI? '03 is definitely downpipe (with cat), mid-section (with resonator) & tail section with silencer (changed on PPP I think), so I would imagine '02 STI is too...
I think the diagram is for WRX

hades

WRX has up-pipe cat, STi doesn't, I believe. IIRC, the STi PPP removes the centre cat and replaces the downpipe with a sports cat.

Unless you are going for big power, I don't believe you'll get a lot of benefit changing the exhaust from the STi PPP one - I am fairly sure several people have shown that the PPP exhaust is pretty free flowing.