My 2004 RX8 6 sp. received new summer tires in April a year ago. Tire Rack recommended Goodyear F1/G3 245 x 40Z x 18. They were fine last summer. I reinstalled rotated front/back in April, 2007. Increasingly this summer the howling noise has increased from both rears Mileage on the tires is no more than 12000. Has anyone had this experience? Any solutions other than buying new tires (maybe non directional this time)? Any help will be appreciated. Love the car

 

i had my tires rotated, ever since then. i get some sort of reverb as well. some insight would be appreciated.

 

Is the noise bad on all types of road surface? Asphalt, concrete? Any difference if rolling on a heavily textured vs. smooth surface? Wet vs. dry?
If it's only the rears, are you sure it's not the differential that's making the noise?