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Decatting a s3

Goubo1 May 23, 2013

  1. Goubo1

    Goubo1 Well-Known Member

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    Seen a decat pipe for an s3 and was wondering if I fitted it would there be any running problems or just throw a light on the dash but the car will still be ok ?
     
  2. Squirrelofdoom

    Squirrelofdoom Member

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    what's your engine code mate? Mines an APY (so no post-cat lamda sensor) and everything is fine with my decat
     
  3. cecilthesausage

    cecilthesausage ...It's Never Finished...

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    Mine was the same.... John Ashley Exhausts....
     
  4. harvey01

    harvey01 Member

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    i put one on my amk s3 i put a lambder space on and never had a light or problem . its for sale i might add as ive since fitted a 3inch downpipe and sports cat
     
  5. Goubo1

    Goubo1 Well-Known Member

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    It's a apy with mtm k26 conversion it has a sport cat on it just now I believe but wanting to go decat as my mates stage 2 s3 sounds wicked decatted
     
  6. jojo

    jojo Looking for Boost! Staff Member Moderator Team Daytona Audi S3 quattro Audi A6 Audi Avant Owner Group

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    Much difference with the additional 3" downpipe?
     
  7. StaceyS3

    StaceyS3 Well-Known Member

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    Would have thought a 3" downpipe will probably make a big difference as the mtm kit retains the split/dual cat setup

    There still must be a gain in running a decat though as its going to be less restrictive than a cat ;)
     
  8. Goubo1

    Goubo1 Well-Known Member

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    a better downpipe is on my list mate,am I right in thinking the mtm one has a rather sharp/tight bend when it comes of the turbo ? As I seen a picture of one and I'm sure it was of one of a mtm k26.

    just I seen a decat for sale mate so was thinking on buying it
     
  9. harvey01

    harvey01 Member

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    yer seem to be better but a pig to fit and pricey . only worth it if like me your going for a stage 2 map
     

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