XDP X220 Series Head Stud Kit 08-10 Ford 6.4L Powerstroke AFE-49-43122-P FASS Whisper Technology was in

FASS Whisper Technology was in development and testing for over two and a half years to meet FASS Fuel System’s high quality and durability standards

Enhance the rear suspension of your 99-10 GM 2500HD 2wd/4WD with the Timbren SES (Suspension Enhancement System) to eliminate vehicle squatting and sagging and provide improved vehicle handling

The BD brake incorporates a threaded port for mounting an EGT probe

This combination of parts has been designed and tested to provide the best longevity and reliability under the most severe use

XDP X220 Series Head Stud Kit 08-10 Ford 6.4L Powerstroke AFE-49-43122-P FASS Whisper Technology was inWhether you have a stock or performance built 6. 4L Powerstroke, head studs are a necessary upgrade. Adding head studs can prevent a lifted head or a failed head gasket due to stretched factory head bolts. The XDP X220 Head Studs are the perfect upgrade for your 6. 4L. Each stud is constructed with 8740 chromoly steel with an added proprietary element. Threads are rolled after heat treating to provide optimum fatigue strength. This stud kit is rated