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  1. #11
    Join Date
    Apr 2013
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    Melbourne
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    will standard exhaust cause any damge

    Quote Originally Posted by rodders188 View Post
    On the exhaust side of things, how long does the gas test take? Does the gas test shop, write down exact what the exhaust setup is or even ask?
    Do you think a Euro5 cat converter like VF GTS, would be suffice if replaced the current difilipo ones. Id like to get the whole car passed with what is has now but seems only OEN Headers and cats will
    5gas takes 20 minutes, but you book for an hour from memory - they do 2 runs, at idle and 3000rpm. If you fail one of the runs you need to rebook and pay the fee again.

    Your engineer is responsible for describing the exhaust and doing the noise test (well mine did).

    My knowledge on cats is limited, just noting what my tuner said to me.
    Last edited by Nath; 13-01-2017 at 07:00 PM.

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  2. #12
    Join Date
    Apr 2007
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    2,274
    Have got VE HSV Headers and cat converters, ve ss catback with rear 2.5'' manta mufflers in the shed.
    Debating if I should just replace the current 3'' defillipo cats with VF GTS Cats (euro5) and try that first. For the cats to work best, they should be closer to the engine to get hotter, so my theory may fail as the defillipo cats sit further down the exhaust.

  3. #13
    Join Date
    Apr 2007
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    2,274
    [QUOTE=Nath;175878]5gas takes 20 minutes, but you book for an hour from memory
    when you did the test, did they ask what exhaust system you had on the car and write it down on the gas report?

  4. #14
    Join Date
    Apr 2007
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    This setup should work and reduce the noise level also to 90 decibles, and be able to retain the whole system on the car, have a euro5 magnaflow cats 3'' in/out 400 CPI welded into with a flange, where the collector is on the DPE Header. Id also be able to leave on the DPE HI flo cats on to....

  5. #15
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    Apr 2013
    Location
    Melbourne
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    Quote Originally Posted by rodders188 View Post
    when you did the test, did they ask what exhaust system you had on the car and write it down on the gas report?
    No they didn't do either. They gave me the A4 print out and were not interested in the car at all.

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  6. #16
    Join Date
    Jan 2004
    Location
    Perth, WA
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    6,470
    Quote Originally Posted by Nath View Post
    No they didn't do either. They gave me the A4 print out and were not interested in the car at all.
    The place that does the 5 gas isn't responsible for engineering. They just test and give the results, they won't care what system is on there.

    The engineer will take all the details, pictures etc before he signs off on it and submits it to Transport.

  7. #17
    Join Date
    Apr 2007
    Posts
    2,274
    That's interesting , I didn't realise that from gas test,







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