shine auto spec-s lip kit
 

How easy is it to install? I ordered one 2 weeks ago and I'm contemplating installing it myself if reasonably easy.

any DIY guides?

Shouldn't be too hard if its anything like the other lips outs there. Probably some double sided tape and a few self tapping screws. Even if it involves removing the bumper, doing so is relatively easy if you have some mechanical skills. The hardest part of most of these lip kits is getting them painted.

how hard is it to remove the side skirts?

you can download the service manual from this site. search service manual.