Not all should be changed.
SD is just for the 2000-2003, right?
The later ones are these:
https://en.wikipedia.org/wiki/Kia_Cerato
for which LD is correct.
There are also many 2006 & 2008 made in Russia, are these correct with FB? Or is it also SD? Or is that something else?
https://www.imcdb.org/search.php?resultsStyle=asList&sortBy=0&make=Kia&model=Spe- ctra&modelMatch=1&modelInclModel=on
(2 pages)