Find the Shift Enhancements products you need to improve the shifting of the transmission in your 2007.5-2010 Chevy/GMC 6.6L LMM Duramax. These Shift Enhancements add greater line pressure to your vehicle's valve body, making shifts firmer and faster. Top brands such as TransGo, BD-Power and XDP are available for most modern diesel transmission applications. Quicker shifts and increased line pressure can help to prolong transmission life by limiting or reducing slip from one gear to the next and also help to improve torque converter clutch life. With XDP's Shift Enhancements products, you can improve the shifting of your vehicle's transmission!