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Xii or sis drop coils the same

Nashman

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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
 

NHXRUNNER

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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.
 

Nashman

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

NHXRUNNER

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I think the XII were stiffer by 50 PPI. The numbers are on this forum somewhere....
 

Nashman

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I think the XII were stiffer by 50 PPI. The numbers are on this forum somewhere....
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
 

BSP06XRU

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

Nashman

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