high flow cats
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Thread: high flow cats

  1. #1
    Fellow Frogger! Andreas's Avatar
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    Sep 2000
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    high flow cats

    before you go telling me they dont make any difference, dont bother, i need to replace my cat anyway.

    should they be the same size as the exhaust or larger?
    any particular brands that are recommended?

    haakon if you're reading this, anything i should know re EPA, i assume they're all legal?

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    Andreas

  2. #2
    Guru davemcbean's Avatar
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    Apr 2001
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    Camden NSW & Selwyn NZ
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    Ford V8 cats are supposed to flow well on 4 cylinder engines, but I guess it depends how much room you have to fit a larger cat. I'm also unsure about how long cat warm up takes when they're alot larger.

    Dave
    NZ Fleet
    1976 504 Ti
    1984 205 GT twin carb
    1991 205 SI 1.6GTI motor
    1994 106 Xsi
    1996 Mondeo V6
    Aus Fleet
    1955 203C
    1997 Civic Cxi (great allrounder- revy, flexible, nimble, comfortable , economical, simple and durable )

  3. #3
    1000+ Posts PeterT's Avatar
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    The Mi16 cat is the same size as the old Group A Commodore cat. if that helps. I think any of the aftermarket V8 cats would do.

    eg
    2000cc x 8000RPM = 4000cc x 4000RPM

    '92 205 Mi16
    '90 Mi16x4

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