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  1. #1
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    To decat or not decat?

    I have an Audi A6 1.8T 1999 model, it requires a new exhaust, what would be the repercussions of decat-ing it at the same time?

    Does the turbo require the back pressure of the cat, so it doesn't self destruct within 10 miles!

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  3. #2
    bez101's Avatar
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    i decat every car i have
    only down side is the MOT

  4. #3
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    So the turbo won't self destruct?

  5. #4
    bez101's Avatar
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    no it will be just fine
    and a few extra hp to go with it

  6. #5
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    Thanks fellas.

  7. #6
    Chugger

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    im in the same boat, im worried that i might end up with a horrible rasp decat noise, so im tempted by going down the sports cat route
    57 A3 2.0 TDI Sportback (140)

  8. #7
    Oranoco's Avatar
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    I fitted a de-cat to my A4 1.8T and it's added no rasp at all, you just hear the turbo spool up more through the exhaust. Obvioulsy this is only in use off road as to use a de-cat on the public highway would be terrible and a sure fire way to have Bill Oddie come round to shout things through your letterbox

    Life begins at 140mph
    Sell my Audi??? Kiss my rings!
    www.passionford.com

  9. #8
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    Obviously!

 

 

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