Power Stop drilled and slotted rotors provide a bolt-on upgrade for improved brake cooling and performance. Precision cross-drilled for maximum cooling and maximum performance during extreme conditions; rounded slots sweep away gasses, dust, and moisture to keep a clean friction contact patch on the rotor surface. Silver zinc dichromate plating resists rust and corrosion. With a direct OE fit, there are no special modifications needed. Audi A4 2017-2019, Audi A4 Quattro 2017-2019, Audi A4 allroad 2017-2019, Audi A5 Quattro 2018-2020, Audi A5 Sportback 2018-2019, Audi A6 2014-2018, Audi A6 Quattro 2012-2020, Audi A7 Quattro 2012-2020, Audi A8 Quattro 2013-2014, Audi Q5 2013-2020, Audi S4 2011-2019, Audi S5 2011-2019, Audi S5 Sportback 2018-2019, Audi SQ5 2014-2020, Porsche Macan 2015-2019