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Does my Avensis have 2 catalytic converters?


Faz778
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Hi.

I have a 2003 Avensis T25 1.8vvti.

I've already replaced the exhaust back box and centre section but now I'm getting a rumble from the front end of the system.

My question is, is the front box just a silencer or is it a secondary cat? When I look for the part online, I see pictures of the front box described as a catalytic converter, however I was under the impression that the cat was integrated into the exhaust manifold, as other pictures suggest? 

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This is a tricky one but I think it is a secondary cat. http://www.japan-parts.eu/toyota/eu/2003/avensis/zzt251r-almekw/3_273550_054_223W/tool-engine-fuel/1702_exhaust-pipe

Take a photo of your exhaust system so you will know.

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Thanks Konrad. Mine is the same configuration as that image. It's that small front box I'm confused about. It can be bought as a separate section but it's very expensive for a silencer so I'm beginning to think that it is some sort of secondary cat, which is a new one on me.

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