Anyone buy injectors from rockauto.com??

Hey guys, I think I am in need of new injectors, the problem is I don't want to spend $100+ on them, when I am probably going to replace them all. On Rockauto.com I have seen some remanufactured ones for about $50, has anyone bought these.

GB REMANUFACTURING Part # 81212111 (http://www.rockauto.com/catalog/catalog.php?carcode=1067138&parttype=6224)