Upgrade Your Rotors. Your 2015-2023 Mustang should have high-end brakes to go with its high-end look. So install Xtreme Stop's Precision Cross-Drilled and Slotted Rotors Rear Pair as a replacement for your old rotors. These rotors from Xtreme Stop directly replace your old rotors and dramatically upgrade your braking system, while the slotted design keeps the new rotors in pristine condition and wearing evenly. The cross-drilled design also works to enhance heat dissipation and water evaporation so that your rotors are left in top condition with perfect balance and 30% cooler than stock rotors.Heavy-Duty Design. Constructed from premium cast iron, the Precision Cross-Drilled and Slotted Rotors are durable in the toughest conditions. Their one piece construction also serves to make them heavy-duty for maximum braking. The rotors are then finished with a zinc electroplating to resist rust and other damage.Installation. Xtreme Stop's Precision Rotors can be installed by those with only light to moderate mechanical skill. Just set aside around 2 hours for the process.Application. Xtreme Stop's Precision Cross-Drilled and Slotted Rotors Rear Pair fit all 2015-2023 Mustang GT and EcoBoost with Performance Pack.