cost depends on the shop, but its pretty simple to put in lowering springs. the stechs werent too difficult. the rear is extremely easy. its just a matter of taking the old spring out and replacing with the new. the front is more time consuming since you have to take off the wiper cowl to get to the top strut bolt, but nothing too bad. then same thing, remove the old and replace with new. just a few more bolts involved of course.

 

You guys can max out the rear coils by just using the spring from the coil/perch.
Okay that's the secret why im low.
Okay bye

 

so you are just sitting on the spring alone? i removed all the collars but wasnt sure of just yanking the bottom perch altogether.

 

Haha yes.
I have C8s as well.