Agentlongwood
New member
On the EBC website they list 2 types of "regular slotted" rotors, under the USR button. They say USR is their newer, silent slotted rotor, and the GD rotors are ones with straight slots that are wider "for better cooling." The BSD rotors have that "blade shaped" slot that they say wipes away gasses more efficiently and provides some wind noise reduction. So it looks like the new USR rotors are supposed to be their quietest. Though they call them USR ultimax, and do not carry anything called just USR without the ultimax name... Just to make 100% certain to frustrate their customers, lol https://ebcbrakes.com/product/usr-slotted-rotors/