New Rotors - Sounds Like Airplane Now
2007 Cobalt LT, 5spd.
My brother (a real mechanic) replaced the pads and front rotors on my son's car today. He used ceramic pads (pro stops from Pep Boys) and "best" rotors from Advanced Auto (we were looking for "coated", but gave up). The rotors are Bendix from China.
Everything went smooth and we drove it around the block and it stops fine. No shudder, no noise, all good.
Get on the road heading home and above 25 MPH, the car begins to sound like you're sitting in the cockpit of an airplane. There is also some resonance.
The car has fresh tires and was very smooth and quiet up until today.
Is it the pads or the rotors that might be causing this?