Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit turn14-in-stock All shift levers are precision

All shift levers are precision CNC machined out of billet steel and black oxide coated for strength and long lasting durability and appearance

Alloy intake pipe

Deployment of the mid merge allows the Sportback configurations to exist without any of resonators

Paired with robust internally lined stainless steel flex sections upstream

Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit turn14-in-stock All shift levers are precisionManufacturer Part # : MMTC L5P TBV Market Description The 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