M6 Speed Injected For Maximum Forgiveness Juiced-Up With Speed Injected Twist Face Every M6 driver has been individually injected to reach the maximum legal limit of ball speed. Step up to the tee with the confidence of having a driver with Tour-caliber speed that's the power of Speed Injected technology. Speed Injected™ Every head is individually speed tested and injected with tuning resin to optimize COR across the entire face The Speed Injection process is designed to maximize ball speed and