hello i drive a 2003 protege and ive nocited my car has been making alot of road noise on the highway. i was just wondering what could be the reason why its making the noise. I have changed my wheel bearings so i know its not them. TIA

 

Tires have a huge effect on road noise one way or another. It's a major cause.
Worn tires and some new ones (the wrong ones) can cause quite a bit of noise to be transfered onto the cabin.
Other than that, you will have to be a little more descriptive about the noise(s) you are hearing.

 

possible balljoint?