Mishimoto has released a direct-fit silicone boot kit with DuraCore technology designed specifically for the 6.4L Ford Power Stroke. Mishimoto DuraCore technology is the synthetic material that comprises the innermost layer of all Mishimoto silicone diesel boots. Compared to normal silicone, DuraCore provides superior resistance to heat, pressure, fuel, and oil. This effectively increases the life of boots by preventing leaks and blowouts. To add even more reliability this kit includes Mishimoto constant-tension T-bolt clamps for accurate and consistent holding power. As with all other products, the Mishimoto lifetime warranty protects your purchase.