DJ Quik to Kanye West -- Make Better Music, Bro! He's Just a Kardashian Now (VIDEO)

DJ Quik challenged Kanye West to get his head out of Kim Kardashian's vagina and start making better music.

Quik's rant happened on Noah Ayala's radio show -- he unloaded on Kanye's 'Life of Pablo' album ... saying fans aren't stupid and can spot a bad product.

Quik, who's promoting his new album, "Rosecrans," claims he wasn't trying to diss Yeezus, but watch the clip ... seems pretty diss-y. Decide for yourself.