These will fit the newer style injector for your 2003-04 5.9L truck. It matches nozzles number 5499. This is a complete kit that includes the nozzle install tool, 6 nozzles, and 6 copper o-rings.
-Maximizes your fuel more efficiently, better atomization
-Must be used with our Dueling Dragons(2-85% over CP3's)
-Extrude Honed Balanced matched for best results
-Great performance for 800-1200hp
Nozzles can be sold individually if needed.
