Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit 2012-nissan-xterra-esi8586013 Highly modified turbocharger setups and

Highly modified turbocharger setups and aggressive driving can result in high temperatures

ISR Performance Universal Steel Dimple Gusset Plates - 42mm Holes

while airflow is improved by 27

Each system is built from premium T-304 stainless steel

Dyno testing showed maximum gains of up to 33 whp and 30 wtq and peak gains of up to 28 whp and 21 wtq while maintaining safe AFRs on the stock tune

Mishimoto 2017+ GMC 6.6L Duramax L5P Transmission Thermal Bypass Valve Kit 2012-nissan-xterra-esi8586013 Highly modified turbocharger setups andThe 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