ACCEL High Performance Ignition Coil Boots, 1997-2011 Ford 2-valve engines, Black, 8-PackACCEL High Performance Igntion Coil replacement boots are designed for extreme conditions. Not only will they hold up in brutal racing environments but they'll withstand one of the toughest places on earth your vehicle. Although racing is tough on all parts, in many ways everyday driving conditions can be even tougher.