it's making a constant buzzing/bogging noise, is this normal?

 

are you talking about behind the rear driver seat? i have a humming noise from back there, but my rear plastic covers are also removed.

 

I usually hear mine after the car has been running for extended periods like after getting off the highway.
And I am talking about the fuel pump not the FPR under the hood.

 

I had an odd gargling type vibration that troubled me for quite some time. It was audible at idle and went away at about 2000rpm. It turned out to be the Comptech FPR. If the lines are not perfect it will vibrate a bit no matter how tight you have the bolts.

 

yeah man that's the problem I have, so play with the lines and possibly it'll go away?

 

I really think it is caused by the line going from the rail to the regulator but I could be wrong. It could also be the bracket vibrating against the side of the car.