Georgetts09

Hey guys so recently I got some new brakes, all four corners. new pads and rotor but basic brakes set from ecs tuning, however I've noticed a kind of annoying screeching from low speed braking and was wondering if I did performance rotors in the front and keep the rear with what they have, because the sound isn't coming from the rear, would that be ok? Or does it have to be a square set up?

Vegas-roadster

Very doubtful that rotors are the issue. I'd focus on the pads. Did you install them yourself? Squeal is caused by pad vibration so perhaps adding a shim or "pad grease" for better bonding will solve the issue. See here https://www.popularmechanics.com/car...a3092/4317748/ ECS sells good stuff so I'd call them and ask if squeal is a common problem and, if not, their opinion for solving the squeal.
If the squeal persists, I'd change the pads to a different manufacturer and you can just change the front pads. I upgraded to EBC red pads whose initial bite is much better than OEM, are very low dust, and are no noise. People change pads and/or rotors on just one axel all the time