Xii or sis drop coils the same

Discussion in 'Suspension' started by Nashman, Jan 27, 2019.

  1. Nashman

    Nashman Active Member

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    I have a set and after installing my flex from leafs it rides so nice now.

    I was hoping to have an idea what the spring rate was

    Dud sis make coils or was it only iix

    Thanks
     
  2. NHXRUNNER

    NHXRUNNER "New Hampster"
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    Sittin’ Sic was bought out by XII Performance. If I remember correctly the first run of SS springs was a different spring rate but since then everything has been the same.
     
  3. Nashman

    Nashman Active Member

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    So what ones are stiffer I am pretty sure I have sic ones since it's in the model number
     
  4. NHXRUNNER

    NHXRUNNER "New Hampster"
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    I think the XII were stiffer by 50 PPI. The numbers are on this forum somewhere....
     
  5. Nashman

    Nashman Active Member

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    Well that sounds good the flex froms work well with the oem springs with a spacer kit but could be a tad stiffer if could find the numbers that would be awesome
     
  6. BSP06XRU

    BSP06XRU Old Member

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    I thought Sitting Sic springs were 775 (original gen1 springs), I don't know about the Eibach ones (maybe 900)?
     
  7. Nashman

    Nashman Active Member

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    Installed them an they are pretty good not bounce y at all
     

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