I'm not an EG man, but i believe that you can use your stock motor mounts. You will need the rear mount for the 99/00 Si tho. Good websites to order a complete JDM B16A SiRII swap from are:
www.hmotorsonline.com
www.jdmhondaparts.com
I've used both, but my B16 from hondamotorsonline(now called hmotorsonline) was in far better condition. I say go with them...plus Steve is cool as hell.
