FFD 7.3 Powerstroke Hybrid 400CC Injectors can increase horsepower up to 700 hp+ at rear wheels with a custom performance chip. These are straight up competition injectors. You won't be on the street with them. In the 99-03 Powerstroke diesel you will have to run a custom programmed chip to make the transition from split shot injection to the new single shot injection. Horsepower increases up to 700 hp and mileage increase from the more efficient single shot design. These injectors have new nozzles and tungsten coated plungers and barrels. The larger 400% oversize nozzles allow for better control of fuel delivery during the combustion cycle with allows for the added horsepower over the stage one injectors. The larger hybrid plunger and barrel in these injectors move more fuel for the same stroke as the stage two injector. These hybrid injectors are designed to operate with stock High Pressure oil. This is stretching the limits for the 17 degree HPOP. This saves money on a new HPOP system by utilizing the system you already have. Built and flowed to within 1%. Come with an outstanding 18 month warranty. Complete set of eight. Core charge required. Please note- a custom tuned chip is required to make these injectors work properly in your truck. We recommend installing new glow plugs when installing injectors. Theses are easy to change at the same time as the injectors. However valve covers are reusable and should be fine unless the harness is damaged. Shipping charges included a return label for your cores. Label is prepaid UPS. We do not charge any other fees to repair your core injectors. Please note some of the other companies charge for bad parts on top of the sale price and do not use new plungers and barrels in their injectors. All cores charges refunded by issuing a check to the customer, with the exception of rusted or coked cores. Coked cores are the result of vegetable oil. Shipping includes a return label for your cores. Recommended for this injector: Competition Level Performance Only! Fuel system and Turbo upgrades recommended.

• Extreme Performance Competition Injectors
• Many Modifications Required
• Custom Single Shot Tuned Chip is required

Warranty: Full Force Diesel Injectors include a 18 Month Unlimited Mileage Warranty!

Frequently Asked Questions:

Custom tuned chip: If you don't have a tuner or a chip currently please select from tuning options above. This has to be done to convert the computer to a single shot fuel injector program.

Core charge: Every injector set requires a core charge. Please select add core to send your injectors now and refund the money later. Best way to not have down time with your truck. Or sending in first for us to wait and sent your order when we get yours to avoid paying the charge. Sending in first shipping label is we email you a label to get your cores here. (Saves you time and hassle)