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resisting corrosion and heat for long-lasting performance
By replacing the restrictive factory exhaust with this high-flow system
with 12-point design for easy wrench access in tight engine bays
It mounts directly to the factory bracket and connects seamlessly with your existing brake lines
aFe DFS780 Full-Time Operation Fuel Pump | GM Diesel 6.6L V8 (11-16) (42-14021) wfinventory resisting corrosion and heat forFull Time Diesel Fuel System (42 14021) by aFe. The diesel fuel in your truck contains contaminants, water and air vapor which is reducing power and damaging your diesel fuel injectors. Introducing the aFe POWER DFS780 Diesel Fuel System, with its patent pending design capable of removing power robbing entrained air, water and contaminants. The DFS780 also boosts fuel pressure ensuring constant availability for the high pressure transfer pump,