With all of the advancements in common-rail injection, aftermarket tuning can unleash a lot of hidden horsepower in your diesel. Perhaps the luckiest of the bunch are owners of '08 to '10 6.4L Power ...

In our May '10 issue, we upgraded Project Godzilla's ('08 Ford F-250) transmission and turbos. With durability and airflow taken care of, we're now going to amp up the fuel flow. With its stock turbos ...

Starting in 2011, Ford and General Motors began using Bosch Mobility CP4 pumps to provide high pressure fuel to their diesel engines. GM used the pump on its 6.6-liter LGH and LML Duramax diesel ...

We may receive a commission on purchases made from links. The problems associated with CP4 high-pressure fuel pumps are well documented. In fact, Ford recently issued a recall of close to 300,000 ...