1st Gen R53 Cooper S Most liked posts in thread: O2 simulator

  1. narvarr

    narvarr Active Member

    Nov 8, 2014
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    So you were still getting the P0420 code after adding the spacer or you added the spacer to get rid of it?
     
  2. chuckt

    chuckt New Member

    Oct 16, 2009
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    I have the 90deg version (no cat material) from Bigdaddy, Been throwing P2270 & P2096 since after about a month with it. It had the P0420 before installation.

    This is with an OBX, Mag CAT & CAT back. Now thinking about Jan's shorty if I can't get those codes to clear.
     
  3. Dave.0

    Dave.0 Helix & RMW Powered
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    May 4, 2009
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    Take the 90 off and install a straight one first.
     
  4. narvarr

    narvarr Active Member

    Nov 8, 2014
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    Any suggestions on a good CAT to go with OBX header? Chuckt, are you using a Magnaflow CAT or is that a different brand?
     
  5. jeffster06

    jeffster06 Active Member

    Apr 23, 2010
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    I run a 90 on mine and keep getting the P2096 code. I didnt think there was enough space in the tunnel to put a straight one in?
     
  6. narvarr

    narvarr Active Member

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    The Magnaflow 91036 CAT goes for about $80 on ebay. Dave or Nate, either one of you guys have a part number for the Random Technology CAT your using?
     
  7. _iD

    _iD New Member

    Apr 5, 2014
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    Dave, did you have to get a new bung added to your shorty to fit the extender? The post cat bung on my rmw shorty is positioned such that there's not room in the tunnel to add the extension.
     
  8. Dave.0

    Dave.0 Helix & RMW Powered
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    Nope no new bung, its tilted down so I have room and no issues.
     
  9. narvarr

    narvarr Active Member

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    #30 narvarr, Apr 21, 2015
    Last edited: Apr 21, 2015
    Where is the best spot to add a second bung for a wide band? Since I'd have to get the donut fitting welded on to the cat, I was thinking of having it add before the cat. Would that work or is it too close?
     
  10. narvarr

    narvarr Active Member

    Nov 8, 2014
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    Eric, on the HJS cat, what c.p.s.i do you recommend?