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Thread: mk4 astra decat

  
  1. #1
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    steve90's Avatar
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    mk4 astra decat

    hi all just a question im on about buying a decat for my astra 1.6 16v sxi i was wondering if it makes any difference or not

    cheers.

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    Hutchysrs50's Avatar
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    Quote Originally Posted by steve90 View Post
    hi all just a question im on about buying a decat for my astra 1.6 16v sxi i was wondering if it makes any difference or not

    cheers.
    it'l make it fail an mot and sound nice nd loud
    If the opel blitz hits you sideways on the forehead you could end up looking like harry potter.

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    palmer's Avatar
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    make it more responsive and rev more freely.
    not a massive power gain realy. possible popping too.
    EDS Stage 2 SRI-T 263bhp - 290ftlb torque
    A clean car is a happy car!

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    thanks guys umm mite have to get just to see wats its like haha

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    WAZZA's Avatar
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    i thought about getting one, and a 4-2-1 manifold, is it right the 4-2-1 give better response low revs than a 4-1 ?
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    mk4rob's Avatar
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    why dont you get a 200 cell sports cat, pass a mot and frees up the revs
    1999 Vauxhall astra G 1.6 16v

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    where can u get one of them from mate?

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    with a decat the car will get abit louder and become raspy. and will pop alot aswell, mostly on the over run

    can smell it a mile off aswell lol

    ye a 4-2-1 keeps power around the mid range where as a 4-1 moves it all to the high high rev range

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    simlawstu's Avatar
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    Not sure about decating an astra but i used to own a skoda felicia (cringe) anyways I took the cat off knocked the Sh*t out of it and stuck it back on. It completely changed the noise of the car (louder and more mettalic) and although it did seem to improve the performance it wasn't as noticable as i had hoped. But then what do I know I was driving around ina 1.3 OHV skoda.

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    /\
    The metallic noise was probably just rasp because youve now got the exhaust gases travelling through a big empty box,lol

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