Essex Designed AP Racing 2-piece Competition J Hook disc pair for front Ford S550 Mustang GT Performance Pack<br><br><strong>Advantages Over OEM Brake System</strong><ul><li>Championship winning, 72 vane, fully-floating, AP Racing J Hook design</li><li>Huge increase in airflow, cooling capacity, and durability vs. OEM discs</li><li>Disc metallurgy specifically designed to handle the temps typically seen on track offer a long service life</li><li>Replacement iron disc rings available at an extremely competitive price ($399 each)</li><li>Approximately 20 lbs. of unsprung weight reduction from the car</li><li>Anti-knockback/anti-rattle disc attachment hardware</li><li>Available disc burnishing service ensures that your kit arrives ready to be installed and driven hard immediately.</li></ul><strong>Features:</strong><ul><li>Sold in Pairs</li><li>14.96" x 1.34" (380mm x 34mm) 72 Vane, D66</li><li>Huge increase in airflow, cooling capacity, and durability vs. OEM discs</li><li>Ultra lightweight at only 22.6 lbs. per disc (saves 10 unsprung lbs. per side, 20 lbs. total!)</li><li>Designed for: Club racing, time trial, autoX, HPDE</li><li>Works with GT/PP OEM calipers, no modifications required</li></ul><strong>Specification:</strong><ul><li>for Front axle</li><li>Disc size (mm): 380x34</li><li>Number of vanes: 72</li><li>Weight per Disc (lbs): 24.6</li><li><a href="https://www.essexparts.com/storage/wysiwyg/competitiondiscassembly_45.pdf" target="_blank">Installation Guide</a></li></ul><strong>Fitment:</strong><ul><li>Ford Mustang GT Performance Pack 2015-2020</li></ul><strong>Notes:</strong><ul><li>Spare Iron Rings:<a href="https://www.vividracing.com/index.php?keywords=13.05.10010/11" target="_blank">13.05.10010/11</a></li><li>Spare Hardware Kit:<a href="https://www.vividracing.com/index.php?keywords=13.04.40003" target="_blank">13.04.40003</a></li></ul><br>