i own a 99 civic si with a k24a2 in it.. i will be looking to lower it along with the whole new sway bars, bushings, camber kits, control arms replacement once winters over..
my current thoughts are going with koni yellows with eibach's pro kit.. i'm not looking to slam the car.. just looking for a slight drop with a comfortable ride.. this is going to be my daily summer car..

i don't know much about spring to weight ratio's and looking for some advice from you all..

 

Persoanly I would pick up ground controls at the same time
This way you won't be stuck with a 1 inch drop or a uneven drop.

 

If you want comfort and a small drop, no need for the lowering springs. Just get the Koni Sport shocks and use the lower circlip position with the stock springs.

No reason to bother with camber kits or control arms either. Definately upgrade the rear ARB though, if tightening up the handling is part of the goal.

 

I'm considering this setup as well.. From what I've read online so far it sounds like this will be a more comfortable ride for a daily driver than GCs..

Is there a chance it could be uneven?

 

It might be a little uneven. However if you measure your car with the stock OEM springs you will probably find it is not completely even either.

 

i honestly prefer springs over coil-over sleeves.. that's why i was thinking about going with the eibach pro kit springs.. or is this just a bad decision..?

 

Not entirely.

But, you could do ground controls with lower spring rates. This is what i recomend.
Im trying to find a thread that has to do with this one, a guy used the pro kit on the yellows and wasnt very happy. If my memory serves me correctly, he said it was just to soft.

 

My brother has the pro kit on his teg with bilstein struts/shocks. I have to say I love it, it is smooth when needed and looks good with a decent drop. The cars corner ability is not bad at all.

 

I think the pro kit inlcudes progressive rate springs. The ride will be very smooth but the drop might be more than you like...?

I used the GC kit 9 ago on an 99Si; 400lb/in front, 600lb/in rear, Re-valved and shortened double adjustable Koni shocks, hard rubber bushings in all the right places, mugen rear upper control arms...I cannot remember whoes front upper arms I used...and a few other items like strut bars etc. Wasn't super comfortable, but not bad.