Do Japanese import 2004 Subaru WRX's have a cat in the up-pipe

[James084]

HI there,

 

I'm soon going to be helping a friend install a new turbo back exhaust on his 04 WRX (it's an automatic if that makes any difference), and I was wondering if the up-pipe contains a catalytic converter? I've found some conflicting answers to it and suspect the reason i can't seem to find a straight answer could be to do with the market they were built for. With this one being a Japanese import, would it have one?

 

Cheers,

 

James

[IZichard]

1 hour ago, James084 said:

HI there,

 

I'm soon going to be helping a friend install a new turbo back exhaust on his 04 WRX (it's an automatic if that makes any difference), and I was wondering if the up-pipe contains a catalytic converter? I've found some conflicting answers to it and suspect the reason i can't seem to find a straight answer could be to do with the market they were built for. With this one being a Japanese import, would it have one?

 

Cheers,

 

James

It shouldn't do, Subaru stopped putting them in pretty soon after they started.

 

You can tell if you have a look. The catted uppipes have a temperature sensor that runs up to a plug on the driver's strut tower. Not to be confused with the a/f sensor that also runs from the header up to the driver's strut tower.

 

If there is a wire going into your uppipe, then it has a cat. No wire, no cat.

Edited April 9, 2018 by IZichard
Auto-correct ducks

[James084]

Ahh sweet, thanks for the info! I'll have a look next time I get a chance. 

 

Cheers!