Putting Stock downpipe back on...
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This is a discussion on Putting Stock downpipe back on... within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; So I tried to get the car smogged with no cats... and obviously it failed... I didnt know it had ...

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    Putting Stock downpipe back on...

    So I tried to get the car smogged with no cats... and obviously it failed... I didnt know it had no cats.. The guy ony said he had put the Helix downpipe.. But he also had a catless uppipe as well.. From what I understand the Downpipe has 2 cats right? So if I just change back to the stocker we should pass smog... this is all in theory of course as Ive got no knowledge of these cars at all... Any imput on this issue would be greatly appreciated!.. Thanks guys!!


    Scott

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    Registered User Thug Nasty's Avatar
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    There are 3 cats. 1 in UP, 1 in DP, 1 after DP
    -John
    Different Strokes
    Dirty Crew #2002
    Mods in profile.

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    Registered User bkotzman00's Avatar
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    Quote Originally Posted by ScoobyWrx
    So if I just change back to the stocker we should pass smog
    not if they already know that the uppipe is catless you will have to replace everything or put in a gutted stock uppipe with a cel fix
    04 WRX Java Black
    Mustang Dyno 218 awhp 216 awtq
    1978 Honda CB400Tll
    yea you know its modified
    1974 Honda CB750 Bobber
    still in the works

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