gas-man

before I bring my car to the dealership for service I noticed that around 60 mph when i step on the brakes the car has some vibration till about 40-50 mph. I am concerned that it might be the aftermarket rotors that I have put in. Has anybody had this problem before?

Brocktoon

Sounds like a case of potato chip rotors for sure. When was the brake job done?

alx

yes, warped rotors.

aeggroup

It is definitely rotors. Never put aftermarket rotors when you do brake job...only original.