GINGER

Hey Luke, I just got a set of 19" HRE 547R's from another member here...he had it on a W203 and I have a r171...the fronts are 8.5 while the rear is 9.5 with 235/35/19's in front and 265/30/19's in the rear...how come i'm having this low and deep humming noise when the car's moving...the pitch of that sound goes up while i accelerate and goes to a very low hum when i slow down to a stop? kinda sounds like an underground metro...i'm sure it's not a problem with the offset...and there's no rubbing issues...is it because the wheels aren't balanced for my car or is one of the tires warped? cuz the steering becomes wobbly at times wanting to go left or right by itself. I'm afraid to drive the car out cuz i don't want this situation to get worse...please advice what I should do or what kinda problem I have here. thanks!