daz_vx220

Hi guys, was thinking of changing my exhaust on my 2004 wrx wagon and not sure how many sections it comes in.
Whats the difference in these:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...STRK:MEBIDX:IT

http://cgi.ebay.co.uk/ws/eBayISAPI.d...=STRK:MEWAX:IT

I thought there was just a down pipe/centre section/back box.
Why are these different?

scooby L

I'd hazard a guess the 2005 one is a JDM twin scroll downpipe, hence the twin entry... but I've never seen one before, only single entry (all my cars have been UK single scroll hence my theroy)

Plus it looks to be a downpipe plus the mid section in one solid section...

Scooby Wagon Addict!

iTrader: (10)

Hi Daz.. I have the same car as you.
You have a downpipe, 2nd cat pipe, centre section with silencer and backbox.
Not sure about either of these on Ebay..the guy with the decat pipe is talking b*llsh*t about it adding 30bhp!
To me it somehow doesnt look right I wouldnt go for it .. to me it isnt the same shape as the 2nd decat pipe I fitted
Have a look here to do a comparison..
https://www.scoobynet.com/trader-ann...-exhausts.html
As said above think the twin pipe downpipe I think is for a JDM and wont fit yours .
If I were you, keep ur downpipe ( so it'll pass MOTs) and fit the 2nd decat pipe and a straight thro centre with a sports silencer , then a decent backbox like a Ninja etc. If you decat the downpipe you should get a reamp for your engine's sake.
Will help spool up quicker and definately more free flowing,
Hope that helps,
Steve

daz_vx220

Cheers for the info mate. So there is actually 4 sections to the exhaust?!

Scooby Wagon Addict!

iTrader: (10)

As in gases going out yes
There also is an up-pipe which people decat as well .. but I think it could just be 2001 + 2002 Bugeye models.

Steve

scooby L

I de-catted my down pipe but left the 2nd cat in place, but this needed a re-map... by leaving the front pipe catted you can leave the re-map out of the equation.

my UK 2003 STI had this set up
downpipe(catted) ---- 2nd cat -----centre section-----back box