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Thread: mk4 sri with no main cat

  
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    jammy's Avatar
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    Question mk4 sri with no main cat

    my 53 reg 1.8 sri has no main cat, i can see where it should be but it just isnt there!, did vx combine it with the middle box (which is the same as other mk4 middle boxes) or did they put it in with the pre cat?? reason i ask is that i just fitted a cat back jetex system for my car, just hoping that the main cat isnt in with the middle box which has now been removed! (there are no sensors in the middle box)
    will it pass with a pre cat?
    any other mk4 owners with this???????

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    ZS's Avatar
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    Euro4 means the whole CAT should be in the big tub at the front. Certainly that's how it's done in my Corsa, and in my housemate's '02 Mk4. My old '00 Mk4 was Euro2 and had a single CAT between the downpipe and the middle box.
    2007 Metro Blue 5 door Mk5 Elite 1.7CDTI
    6th Vauxhall (4th Astra) in 10 years...plus a couple of other sheds...

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    ok cheers mate!

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