HONDA OEM Si Suspension Kits for 4 door Civic (FA5 or FD).
Originally from 2011 Civic Si 4Dr. Swap them for HFP right after I bought the car. This suspension kits has less than 500km on them.
Rear springs

http://www.flickr.com/photos/asimo118/6905445857/
Rear shocks

http://www.flickr.com/photos/asimo118/6905449215/http://www.flickr.com/photos/asimo118/6905449215/ by
Asimo118, on Flickr
Factory QA paint is still on there
http://www.flickr.com/photos/asimo118/6905452367/http://www.flickr.com/photos/asimo118/6905452367/ by
Asimo118, on Flickr
Front suspensions
http://www.flickr.com/photos/asimo118/6905462397/http://www.flickr.com/photos/asimo118/6905462397/ by
Asimo118, on Flickr
Great for upgrade for none Si 4dr Civic.
Asking $300 OBO
8th Gen Civic Si 17mm rear sway bar. (no end-links)
http://www.flickr.com/photos/asimo118/6905472935/http://www.flickr.com/photos/asimo118/6905472935/ by
Asimo118, on Flickr
Asking $75 OBO
looks like I can't post picture from Flickr.com, here is the link to those parts.
To sell - a set on Flickr