Hey NBGuy,
I don't know much about Espelir springs. It's possible someone else on here has more info. I'm running Tanabe Sustec K13DK sport springs on the stock shocks with no issues. They lower the car by about 30-40mm according to Tanabe. I don't have the exact lowering height but it's definitely somewhere in that range, probably closer to 40mm. The Espelir springs apparently lower by 42-47mm,front and 40-45mm rear, so yours would probably be a bit lower than mine... Hope this helps a bit.
Here's some pics for height reference.
Cheers.