^ have your friend autocross his car... he'll hate his ebay springs lol
anyway, the perches go underneath the springs (that way, when you raise the perch, you raise the spring and by doing that raise the car, the same thing when you lower the perch). Everything else basically gets put back on the car the way it was with the stock springs. With coilovers, you'll want to cut the bump stops in half and use the (I
think) upper half of it, and you'll want to cut the dust shields so there's only 1.5" left on it. I'll see if I can't dig up the thread with the coilover DIY I wrote... it'll be in a little bit... I gotta go eat lol
*edit: found it...
click hurr