I was thinking on buying a set of ST lowering springs. It says 1.75 inch drop front and back .
Will I have any problem having my car re-aligned with this amount of drop with stock supsension parts ( except fot the springs of course) ?
Will I need to replace the stock shocks?

Were can I find a service manual with specs so I can install them myself?

Has anyone tried these springs?

I would replace the shocks with that big od a drop for sure. Not sure how alignments are gonna come out. Not sure if the camber and toe are adjustable in the front and rear. ST is that Spring Tech, if so I think there some cheap springs.

Spring tech is correct. They are inexpensive,yes.

Camber and Toe are adjustable front and rear on the TC.