Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit - MMTC-L5P-TBVFF fits_2007-2014`Jaguar`XK upgrading the oil cooler is

upgrading the oil cooler is a great way to extend the life of your S63 and ensure maximum engine output when you need it most

Simple Installation: This MACH Force-Xp cat-back exhaust system uses factory mounting locations providing stability and a hassle-free installation

Dual 5" Diameter Black 304 stainless steel Intercooled Clamp-On Exhaust Tips

Undergoes full quality assurance prior to shipping

F07 550I Gran Turismo

Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit - MMTC-L5P-TBVFF fits_2007-2014`Jaguar`XK upgrading the oil cooler isThe Allison transmission is the backbone of your L5P Duramax. It's responsible for transmitting large quantities of torque from your V8 diesel powerplant. This torque generates a lot of heat, and if that heat isn't dissipated, it can destroy your transmission. The transmission cooler does a good job of keeping trans fluid temperatures in check, but only if the fluid can reach it. The stock cooling system of the Allison 1000 transmission utilizes an in