ka24de back of motor

[inferno s14]

im not running a iacv or any emissions or butterflies, everything is deleted on my intake, do i need these biches on back of my motor? im about to toss this out.

http://i222.photobucket.com/albums/dd141/infernokid2/Mobile%20Uploads/20150409_155406_zpsxr3ae1i8.jpg