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Thread: Decatting a s3

  1. #1
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    Decatting a s3

    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 ?

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    Squirrelofdoom's Avatar
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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

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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

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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

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    Quote Originally Posted by harvey01 View Post
    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
    Much difference with the additional 3" downpipe?


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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
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    Quote Originally Posted by StaceyS3 View Post
    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
    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

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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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