EPC Solenoid Fooler Plug XD345 XDP Duramax LML Throttle Response

Throttle Response

straight forward installation

cylinder heads

The XD40127TC (for head studs) and XD40128TC (for inner row bolts) are a great add-on that will be critical during installation

Even in moderate builds

EPC Solenoid Fooler Plug XD345 XDP Duramax LML Throttle ResponseIncrease the durability, line pressure, and performance of the Allison transmission in your 2011 2019 GM 6. 6L Duramax LML and L5P with the XDP EPC Solenoid Fooler Plug XD345. From the factory, the function of the EPC solenoid is to increase line pressure during shifts up to 230 PSI and once the shift is complete, drop the pressure back down to 80 PSI. At 80 PSI your Allison can't hold the added stress of aftermarket upgrades or even towing a heavy