I JUST put my 2" lowering springs on the front of my car and it took about an hour total time with just me doing it.
Basically,
1.. pull off your tire
2.. Pull your brake hose off the caliper
3.. Pull off the caliper, move brake line out of the way
4.. Open hood, remove 1 bolt + 2 nuts from shock tower up top
5.. Remove sway bar nut/bolt.. Watch for compressed shock to recoil and support with jack if you get scurred
6.. I used the floor jack handle and popped the bottom of stock spring out of housing.. You can use a spring compressor available for rent at autozone..
7.. Slide sheath off bottom of stock spring and put on new spring.
8.. Installation is reverse of removal - much faster to reinstall due to new spring being considerably smaller.
9.. Have fun and call me if you want help!