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MSD Ignition 8739 Module Selector 2-Step for use w/MSD Soft Touch Rev Control or Timing Control Unit

121-8739

made in usa

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8739 Module Selector 2-Step for use w/MSD Soft Touch Rev Control or Timing Control Unit
$131.95
$118.75
SAVE $13.20
1 left in stock
2-Step Module Selector
  • Use w/MSD Soft Touch Rev Control or Ignition Control w/RPM Module Socket
  • Choose 2 Different RPM Limits
  • Ability to Switch Between 2 Different RPM or Degree Modules
  • Allows Launch Rev Limiter and High-Speed Limiter
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    8739 is rated 4.0 out of 5 by 5.
    Rated 5 out of 5 by from Good stuff as usual As always, Jegs and MSD hooked me up. I like the simplicity of the MSD units. Sure, I could have gone with a new grid/digital setup, but for what I do bracket racing, these units work great.
    Date published: 2015-12-21
    Rated 5 out of 5 by from MSD 2 STEP USED FOR MUD RACING WORKS GREAT Great hole shots No delay on release
    Date published: 2015-08-25
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    can I use the 8739 with a old 6A box

    Asked by: David
    The MSD 121-8739 2-Step does not work with a 6A box.
    Answered by: jshook
    Date published: 2024-08-27

    Will the 8739 work with my 6420 box?

    Asked by: drdangerous24
    The MSD 8739 will work with a 6420 box.
    Answered by: jshook
    Date published: 2024-04-01

    Will this fit my 06 corvette? 

    Asked by: leo88
    The MSD 121-8739 2-Step does not fit an '06 Corvette.
    Answered by: jshook
    Date published: 2024-01-04

    Can I use this on my 2001 Honda Civic 

    Asked by: Fatboys
    The MSD 121-8739 2-step does not fit an '01 Civic.
    Answered by: jshook
    Date published: 2023-04-28

    Will this work with a 6014ct box

    Asked by: Bob5757
    The MSD 121-8739 2-step does not work with a 6014CT box.
    Answered by: jshook
    Date published: 2023-04-28

    Can I use with a 6 Al box and boost timing master?

    Asked by: Anonymous
    The MSD 121-8739 2-step can work with a 6AL and boost timing master.
    Answered by: jshook
    Date published: 2023-03-08

    Dose this fit on a 2001 ford crown vic p71

    Asked by: Mullet man
    The MSD 121-8739 2-step module does not fit an '01 Crown Vic.
    Answered by: jshook
    Date published: 2022-12-13

    Will this fit a 97 3.8 mustang?

    Asked by: Karma0024
    This will work if you are using a MSD ignition box with a rev limiter like the 121-6425
    Answered by: Rusty B
    Date published: 2019-07-21
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