1989-2016 Powerstroke BD Diesel Rear Differential Cover AA 12-10.25/10.5 (1061830) Flo~Pro Cat & DPF Race Pipe These replace stock worn-out vanes

These replace stock worn-out vanes simply due to age and wear with a high flow version to increase airflow and drop EGTs of your 6

15 percent over nozzles

This will help keep your truck from popping head gaskets

Designed as an OEM replacement piston

Note: Recommend having nozzles installed

1989-2016 Powerstroke BD Diesel Rear Differential Cover AA 12-10.25/10.5 (1061830) Flo~Pro Cat & DPF Race Pipe These replace stock worn-out vanesBD's design deflects the oil back onto the ring gear and into the pinion gear for cooler longer life. Other differential covers are large and bulky resulting in lubricating oil being flung off the ring gear causing addition heat and or wear.