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Stage 3 Injectors- Often referred to as "Hybrids" these are single shot injectors that flow 205cc - 400cc with an increased size 7 hole nozzle. The larger nozzle size allows for fuel to be dumped into the combustion chamber faster, which allows programming and injection to be more precise with fuel delivery. These also have a larger plunger and barrel and reduce the injection ratio from stock 7:1 to 5:1. A turbo upgrade like the Bell HFSB, Driven Diesel Regulated Return fuel system, performance fuel pump and Terminator T500 high pressure oil pump are strongly recommend for maximum results. Expect rear wheel horsepower around 450-480 with supporting modifications like intake, exhaust, turbo and performance chip. This item is drop shipped from our supplier. These injectors are also offered in different CC sizes depending on your needs and performance goals, 500+ rear wheel horsepower is easily attainable with the proper sized Stage III injector and supporting modifications. See options below. Custom programming will be required to run the single shot injectors in a 1999-2003 application. Reman Injectors come with new plunger and barrel Injectors drop shipped directly from Full Force.