XDP Heavy Duty High Boost Valve Spring Set 03-10 Ford 6.0L/6.4L Powerstroke WT-450121-450042 from relaxed and forgiving shifts

from relaxed and forgiving shifts to "what just kicked me in the kidneys

Ford F-450 Super Duty (1999 - 2005)

Why not protect that investment with a sturdy mount and skid plate system

enhanced performance for your lifted Superduty

This 62 gallon direct replacement tank will allow you to keep going down the road while others are stuck looking for fuel stations

XDP Heavy Duty High Boost Valve Spring Set 03-10 Ford 6.0L/6.4L Powerstroke WT-450121-450042 from relaxed and forgiving shiftsOne of the most overlooked performance parts in most Powerstroke performance builds is the valve springs. They may not be something you can see, but we can assure you, they are essential in ensuring your engine is operating properly with all your other performance parts. The factory springs are not designed to handle the elevated boost levels that are typical in modified applications causing valve float. This will drastically hurt your engine