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Thread: decat or sports cat on my zlet

  
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    matt_hilluk's Avatar
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    decat or sports cat on my zlet

    pros and cons of each?
    Astra MK4 SRi-Turbo with Courtenay Sport Tuned Z20LEH VXR 888 Sport Maxx Engine

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    sport cat, its legal!
    i had a decat for a while but didnt want the risk of being caught so i put my cat back in
    GSi

    Built not Bought

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    Rich87's Avatar
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    do you know a friendly mot tester?

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    i dont mind swapping the pipes over for mot, thats not an issue to me

    just want to know the pros and cons for day to day use of the vehicle, i was told decat is bad for the turbo
    Astra MK4 SRi-Turbo with Courtenay Sport Tuned Z20LEH VXR 888 Sport Maxx Engine

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    will a sports cat keep the car quieter than a full decat?

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    A decat will make it pop & bang & would be a louder note, but it can blow turbo seals apprentaly because there's not enough back pressure.

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    i want the pops and bangs

    i want it to sound like a vxr burg <3

    i dont know if my miltek is res or non res :\

    how likely are the seals to go and would it mean a new turbo?
    Astra MK4 SRi-Turbo with Courtenay Sport Tuned Z20LEH VXR 888 Sport Maxx Engine

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    Novaneil's Avatar
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    De-Cat!!! Much Much cheaper & more power / noise! As long as you don't mind fitting CAT at MOT (or you know a friendly tester ;-)

    The De-CAT will not make your Z20LET pop & bang like a VXR with a REMUS though. FACT i'm afraid.

    And with regards to seals going... I've never had a problem due to my decat. But I do run the oil restrictor bolt mod though.

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    i would run the restrictor bolt anyway, but i run a decat no problems

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    How long for rich ? 1st iv heard about seals going cos of a decat... :/

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