Replaced wheel bearings and still makes roaring noise

Maybe Tires or wheel bearings.

Sounds like a bearing issue. Either a bad bearing, not seated correctly or not properly installed

Is it possible you are hearing a wheel bearing instead of the engine or exhaust ?
Normally a bearing will roar on a turn and not on a straight stretch, but I guess its possible to do it the other way. A tire will make a roaring noise too.
I can't think of anything related to the engine that would roar only on a turn except maybe the power steering.

while the wheel bearings still feel tight they are the cause of your problem, after a collision most cars suffer from this problem depending on the speed of the accident the forces encountered during a sudden stop causes intense stress and fatigue on the bearings

sounds like a wheel bearing very common in these

we have a 2003 saturn vue which we installed new tires on and we noticed a noise about 6 months afterwards. it sounded to my wife and i to be loud road noise from the tires. the car was driven for 6 months and we decided the noise was annoing. had the tires checked only to find it was the left front wheel bearing which was replaced and stopped the noise.

bad hub bearing

You must replace wheel bearings in pairs to avoid loading the old bearing and, in time ruining your new bearing hub it is possible that you have already damaged the new hub

If your turning your car to the right when it make the noise or the Left Listen and find out because which ever way the noise is loudest usually meaning that is the side going bad, Thats the rule Usually some cars and trucks have fronts and rear bearings, But I think it is a wheel bearing, Have a mechanic or a friend that may turn some wrench's Check it out for you. Hope that helps you out. :))

check the mounts for the shock absorbers