This effin noise is driving me crazy maybe you guys can help me
I got this hunning noise during acceleration it sounds like its commin from under the car so i assume its the exaust. I hear it only after the car has been run a while and mostly during hard acceleration but i mostly hear it in fifth gear at a low rpm. Its really anoying and it emabressed the hell outa me when i accelerate hard sometimes by making the humming noise really loud. I have no clue wtf it is only that ive been leavin off trying to fix it due to the fact that im ordering a cat back 3" exaust next week so i figured id worry more about it if i still heard it after the new exaust was already in.
I still have my cats (soon to be replaced by a bonez straight pipe) and everyhing else is stock the car has made that noise since i bought it

Any info would help guys -THANKS

 

Is the exhaust tip rubbing against the rear bumper?