Originally Posted by raamaudio
Not sure if the STI is louder or not, the tires on the car we worked have been changed but they just howl on any kind of rough pavement so will look into them more. I am wondering if the bushings are so stiff they transmit alot of that into the body structure. The body is stiff but that low freq energy is the hardest to deal with and it is exceptionally strong in this particular car.
Would thickening-up the undercoating in the wheel well and/or dampening the inner side of fender liners possibly help with tire-road noise?