http://scionsport.com/store/product_info.php/cPath/21_27/products_id/34?osCsid=f2ed192f10df33e13337f7201b148ee5

Long link but I like what's on it. It also has a wide body side skirt add-on (you probally noticed it's just the front and rear bumpers.)
Anyway, I was wondering, is the kit a bolt-on. It may be a stupid question but I'm a learner right now so I don't know how to tell or what to look, so... inform me. Thanx!!

Looks like it replaces the OEM stuff
Depending on how well it's made it should be take off the old and put on the new, if made poorly you have to mod it to fit right

that seems hard... is it?

Depends, if you have to fill gaps it can be if its just a bit o trimming it isnt really, having the mounting locations match up is the real bother.

all kits bolt on. it comes down to the quality in which everything lines up.

Doesn't look too bad, need a drop to go with it though.