tire or suspension noise problem?

eastsyder

Hey guys,

any suggestions or ideas for me here? i've been trying to figure out a noise coming from what sounds like my right rear tire. it speeds up and slows down with the speed of the car. it's like a womp womp womp noise. almost like the sound of bad bearings.

So i took it to a shop and they said it was the rear wheel bearing. they replaced both and the sound was still there! they shows me some feathering/cupping on the inside of the right rear tire so i was like ok, maybe the bearing problem ruined the tires. i put 2 new tires on and the sound isn't as bad but it's still there.

Now the shop is saying it must be bad shocks and struts. i already paid these guys $1200 for the wheel bearings. how can i tell if the shocks and struts are really bad?

It's an 09 with sports package and 48,000 miles. i've done track days about 10 times and autocross about 8. i'm wondering if driving it hard on the track might cause the suspension to wear prematurely?