Quick Question guys on walbro 255 fuel pump

I got a Evo3 turbo installed on my 2g gst and a walbro 255 fuel pump I want to ask if its ture that the 255 fuel pump makes sounds cause I can hear some sound from the back is this normal but the sound is not to loud but just checking thanks :icon16:

Sometimes the Whinebros are very loud, sometimes you can't even hear them over the exhaust. Mine was quiet.