Tein.Same part # but different spec?

[Pinchlite]

I want to go lower and from what I have read Tein S are supposed to be 1.9''

As you can see here the same model spring is shown with different drop in inches.

1.5'' https://www.tdotperformance.ca/tein-...pring-kit.html

This site shows header as 1.9 but reading description it says 1.5''.

https://www.carid.com/tein/spring-mp...61&url=5967302

So what is it...1.5'' or 1.9''??

I am on 1.5 know and 1.9 would be perfect.If the drop is only 1.5 then I will have no choice but to go coilover.

Thanks for all the assistance as usual.