Description of Power JBR1576XPR Evolution Drilled Slotted
Gives you the advantages of both drilled holes for cooling and slots to sweep away gas and dust. All drilled and slotted rotors (except for hub rotor assemblies) are silver zinc plated to help shield and resist rust during normal operation. Beveled and precision drill holes help keep rotor temperatures down during extreme braking performance. Rotors are reverse engineered from OEM samples. Up to 180 degrees cooler.
As my tests showed, this brake upgrade did not perform as expected.The drilled and slotted design promised improved performance, but instead caused annoying brake squeal..
I don't normally write reviews but would like to warn everyone else. I would not recommend this product. I bought a slotted disc and rotor but there was a grinding noise when it stopped. I have done hundreds if not thousands of brake jobs and have been amazed at the results of installing this product. I need to return and replace these rotors to eliminate friction noise.
Pros
Gives you the benefits of drilled cooling holes and gas and dust vents