@chris anderson: Near the top of the first page of the invoice, under Mechanical it shows "High Performance Shock Absorbers". This seems to make it clear that at least one competent KIA dealer
@BEACH Stinger has what it takes to lower the Stinger, and show it right on the invoice.
Maybe
@BEACH Stinger can verify this -- since the lowering mod on is shown on their invoice, presumably it means the mod does not invalidate the KIA warranty.
If you live in or near SoCal, seems like
@BEACH Stinger could be the right kind of dealer to serve your needs. On the other hand, if you live in another region you could show the picture of the
@BEACH Stinger invoice to your local KIA dealer and ask them to explain why they can't or won't do the same for you.