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  • sinny Posts: 33
    Canberra
    Stock Poster sinny
    01 Aug 2020 11:20 AM
    I am installing an 2-into-1 cobra exhaust and changing from a 2-into-2. 

    The bike has been running (fine) with the 02 bungs plugged but to apply a new tune with the Screamin Eagle Pro Street Tuner im pretty sure i need to connect the 02 sensors. 

    Part number - 27683-07* and should be the same oxygen sensor for all EFI big twins 07 up. (well at least 07-12)
    18mm 

     
  • magnum54 Posts: 101
    Stock Poster magnum54
    01 Aug 2020 11:32 AM
    Quoting sinny on 01 Aug 2020 11:20 AM
    I am installing an 2-into-1 cobra exhaust and changing from a 2-into-2. 

    The bike has been running (fine) with the 02 bungs plugged but to apply a new tune with the Screamin Eagle Pro Street Tuner im pretty sure i need to connect the 02 sensors. 

    Part number - 27683-07* and should be the same oxygen sensor for all EFI big twins 07 up. (well at least 07-12)
    18mm 

     
    you don't need oxygen sensors to flash a map
    you will need them to do a closed loop tune
    your local dyno shop may have a heap of used ones
    some shops tune the engine and then run open loop
  • sinny Posts: 33
    Canberra
    Stock Poster sinny
    01 Aug 2020 11:37 AM
    Thanks Magnum - i thought that might be the case with the flash but i cant see any maps that resemble my setup (which is pretty standard: air intake+2-into-1) so thought that the auto-tune was necessary to get closer to what it should be. 

    Ive been asking around locally but thought someone may have a set in their shed that that dont need. 
  • tussuck Posts: 2519
    Melbourne
    Forum Legend tussuck
    01 Aug 2020 12:15 PM
    Do you use Wideband or stock narrowband?

    I had to make sure I had Widebands for the Thundermax Auto Tune
  • sinny Posts: 33
    Canberra
    Stock Poster sinny
    01 Aug 2020 02:55 PM
    Quoting tussuck on 01 Aug 2020 12:15 PM
    Do you use Wideband or stock narrowband?

    I had to make sure I had Widebands for the Thundermax Auto Tune
    Just the stock sensors with the Screamin' Eagle Pro Street Tuner. 
  • Smokey61 Posts: 843
    Townsville
    Performance Poster Smokey61
    01 Aug 2020 03:07 PM
    Quoting sinny on 01 Aug 2020 11:37 AM
    Thanks Magnum - i thought that might be the case with the flash but i cant see any maps that resemble my setup (which is pretty standard: air intake+2-into-1) so thought that the auto-tune was necessary to get closer to what it should be. 

    Ive been asking around locally but thought someone may have a set in their shed that that dont need. 

    They're not expensive, I recently replaced one. I think it was $12. Front and rear are different lengths and colours.
  • sinny Posts: 33
    Canberra
    Stock Poster sinny
    01 Aug 2020 03:09 PM
    Quoting sinny on 01 Aug 2020 11:37 AM
    Thanks Magnum - i thought that might be the case with the flash but i cant see any maps that resemble my setup (which is pretty standard: air intake+2-into-1) so thought that the auto-tune was necessary to get closer to what it should be. 

    Ive been asking around locally but thought someone may have a set in their shed that that dont need. 
    Quoting Smokey61 on 01 Aug 2020 03:07 PM

    They're not expensive, I recently replaced one. I think it was $12. Front and rear are different lengths and colours.
    i would really like to know where you found some for $12 Smokey - cheapest i can find is $80 each
  • magnum54 Posts: 101
    Stock Poster magnum54
    01 Aug 2020 05:39 PM
    Quoting sinny on 01 Aug 2020 11:37 AM
    Thanks Magnum - i thought that might be the case with the flash but i cant see any maps that resemble my setup (which is pretty standard: air intake+2-into-1) so thought that the auto-tune was necessary to get closer to what it should be. 

    Ive been asking around locally but thought someone may have a set in their shed that that dont need. 
    Quoting Smokey61 on 01 Aug 2020 03:07 PM

    They're not expensive, I recently replaced one. I think it was $12. Front and rear are different lengths and colours.
    Quoting sinny on 01 Aug 2020 03:09 PMedited: 01 Aug 2020 03:13 PM
    i would really like to know where you found some for $12 Smokey - cheapest i can find is $80 each
    Agree
    if you can get one for $80 that is cheap
  • tussuck Posts: 2519
    Melbourne
    Forum Legend tussuck
    01 Aug 2020 06:22 PM
    And would would you even bother with a narrow band system.  
  • sinny Posts: 33
    Canberra
    Stock Poster sinny
    01 Aug 2020 06:25 PM
    Quoting tussuck on 01 Aug 2020 06:22 PM
    And would would you even bother with a narrow band system.  
    i have an SEPST tuner - so the stock 02 sensors should be all i need. 

    I know about the Fuelpak and other tuners - but i dont want to buy another tuner if i can help it. 
  • magnum54 Posts: 101
    Stock Poster magnum54
    01 Aug 2020 06:38 PM
    Quoting tussuck on 01 Aug 2020 06:22 PM
    And would would you even bother with a narrow band system.  
    Quoting sinny on 01 Aug 2020 06:25 PM
    i have an SEPST tuner - so the stock 02 sensors should be all i need. 

    I know about the Fuelpak and other tuners - but i dont want to buy another tuner if i can help it. 
    Screamin' Eagle Pro Street Tuner is a better tuner than Fuelpak or Thundermax
  • Smokey61 Posts: 843
    Townsville
    Performance Poster Smokey61
    02 Aug 2020 02:03 PM
    Quoting sinny on 01 Aug 2020 11:37 AM
    Thanks Magnum - i thought that might be the case with the flash but i cant see any maps that resemble my setup (which is pretty standard: air intake+2-into-1) so thought that the auto-tune was necessary to get closer to what it should be. 

    Ive been asking around locally but thought someone may have a set in their shed that that dont need. 
    Quoting Smokey61 on 01 Aug 2020 03:07 PM

    They're not expensive, I recently replaced one. I think it was $12. Front and rear are different lengths and colours.
    Quoting sinny on 01 Aug 2020 03:09 PMedited: 01 Aug 2020 03:13 PM
    i would really like to know where you found some for $12 Smokey - cheapest i can find is $80 each
    Put that down to a senior moment. Just checked, cost me $91.
  • Smokey61 Posts: 843
    Townsville
    Performance Poster Smokey61
    02 Aug 2020 02:05 PM
    Quoting tussuck on 01 Aug 2020 06:22 PM
    And would would you even bother with a narrow band system.  
    Quoting sinny on 01 Aug 2020 06:25 PM
    i have an SEPST tuner - so the stock 02 sensors should be all i need. 

    I know about the Fuelpak and other tuners - but i dont want to buy another tuner if i can help it. 
    Quoting magnum54 on 01 Aug 2020 06:38 PM
    Screamin' Eagle Pro Street Tuner is a better tuner than Fuelpak or Thundermax
    My bike's last owner went thought 3 Fuelpaks, then installed the Thundermax. I removed the Thundermax and use the SE Pro tuner now.
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