SKU #: CA-AP-ST2-180cc-main Casserly / Full Force Stage 2 New Performance Injector Set (8) 99-03 7.3L Powerstroke

Purchase Casserly / Full Force Stage 2 New Performance Injector Set (8) 99-03 7.3L Powerstroke
    • 1999-2003 7.3L Ford Powerstroke
  • Choose One: Core Charge: ?

    Terms & Conditions

    We at Diesel Power Products offer a deferred core program in which we allow you to defer the typical upfront core charge when purchasing via credit card payment. All cores, whether the core charge was deferred or not, must be returned within 21 days from delivery date of product requiring core charge. Failure to do so can result in forfeiture of the entire core charge return. In the event you originally deferred the core charge, by clicking to agree, you authorize Diesel Power Products to charge you for the core charge.

    All cores must be returned to the original warehouse that original shipment was sent from. If a return label is provided in the original shipment, use this tag. If one is not included, contact us immediately, and we can provide you with the correct address of where the core(s) must be returned to, as well as an RMA (Return Merchandise Authorization) number. DO NOT rely on the return address on the original label as a source for where to ship to.

    If cores are shipped to the incorrect warehouse, your core money will be returned less the shipping cost for us to send the core(s) to the correct warehouse, or if you deferred the core you may be charged for the shipping amount.

    Cores that have been disassembled and/or have missing and/or damaged major components will not receive full core credit. Returned cores must be on a "like-for-like" basis, meaning that the returned core has the exact same fitment as the remanufactured component that was purchased. In the event that the core is not "like-for-like," your core may not be eligible for return / credit.

    Diesel Power Products has the right to alter this policy (i.e. extend the terms) for any reason. If you have an outstanding circumstance, contact us.

    What is a "Core Charge"?

    In order to understand what a core charge is, you must first understand what a core is. In the automotive industry, most products are manufactured from brand new materials. However, numerous products are also remanufactured, meaning that the manufacturer of the product takes a used product, typically removed from a vehicle, disassembles, and replaces all worn components of the master product. A great example of this is in regards to automatic transmissions in which the manufacturer takes an existing transmission, replaces all of the inner working components, such as the torque converter, valve body, etc. and merely reuses the case.

    Because aftermarket manufacturers require a steady stream of incoming cores to build, they charge a deposit on the core, known as a core charge, that is refunded upon receipt. In some cases, the core is not reusable, such as in the event of a cracked case, at which point the core deposit would not be credited as the core component is not reusable.

    If you plan on returning your core you have two options.

    OPTION 1:
    You can accept it, which means you will be charged for the part AND the core at time of purchase. You still have the option to send it back, and if you do, the core will be refunded back on the card used, presuming the core meets core criteria and the core is returned within 21 business days from originally receiving your order. If you have outstanding circumstances that would not allow the return to occur within 21 days, please contact us.

    OPTION 2 You can defer the core charge. If you defer it, you will not be charged a core at time of purchase. You will have 21 business days from the day you receive it to send it back. As long as the core is received within the 21 business days, you will not be charged. If 21 business days goes by and you do not send it back, the card on file will be charged the core amount. You still may send it back, and once received, we will issue the core amount as in store credit, pending any limitations as set forth by the manufacturer.Core deferral is limited to payment by credit card only.

    What is "Core Return Shipping Cost"?

    This product is remanufactured and requires that your original part being removed (core) to be returned. The return shipping charge of your core is not included in the purchase price of the item, but we offer you a flat rate charge that includes a core return shipping label as a convenience. If you would like a core return label included with your purchase, please select this option.
    flow option
    Nozzle Size
  • Manufacturer Warranty: 18 Months


Upgrading the injectors in your Powerstroke will deliver a noticeable increase in power, drivability, and even fuel economy. This injector set from the professionals at Full Force start out as new Al ... read more

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Upgrading the injectors in your Powerstroke will deliver a noticeable increase in power, drivability, and even fuel economy. This injector set from the professionals at Full Force start out as new Alliant injectors (not remanufactured) and then the internal modifications are completed to provide the additional fueling for improved power.

Full Force's Stage 2 Performance Injectors have the same internal modifications as the stage 1 and stage 1.5's. The main modification for both injectors is inside the injector on the intensifier piston. This piston is a mechanical limiter, it's modified or shortened which allows the plunger stroke to move slightly farther, allowing more fuel to be pushed through the nozzle during each injection cycle. Each injector is also converted over from split shot to the more efficient and powerful single shot design. The split shot system includes a wasted pilot injection originally designed to make the engine quieter during idle. Converting from the stock split shot injection to a single shot will require custom tuning. Please contact us if you have any questions.

Here's what makes the stage 2 a higher horsepower injector over the stage 1 and 1.5: the nozzle size is larger. These injectors have a nozzle size of your choosing from 80 percent larger than stock to 100 percent larger than stock. The larger nozzle moves the total available fuel (180cc) quicker into the cylinder for a larger, more powerful explosion. The quicker the fuel empties from the injector into the cylinder, the larger, more precise the explosion and more power is achieved. So understanding this, you can choose the larger more powerful 100 or the smaller 80 percent nozzle to reduce smoke and EGT's (Exhaust Gas Temperature) levels slightly.

The stage 2 makes more power, but keeps the total CC volume lower over their hybrid cousins. You can make performance oriented power with the same stage 1 total flow rate of 180cc. More power with decent fuel economy is a win-win right? Sort of...

With the larger nozzle comes more smoke. Although you empty the injector quickly, you also provide the truck with a little too much fuel to burn completely in a stock truck. The byproduct is excess black smoke and higher exhaust gas temperature from that wasted fuel. The majority of this smoke comes on the low end of the throttle when the turbo hasn't built enough pressure to utilize the fuel. Most refer to this condition as lugging the engine. This isn't harmful to the engine or turbo but that's when you get the cloud of smoke when you're taking off.

The good news: more of that fuel can be burned or cleaned up with a few more upgrades like an air intake, larger turbo, and/or bigger intercooler.

180cc vs 160cc:
180cc is the best choice for most 1999-2003 trucks. The only time Full Force recommends the 160cc injectors is in high altitude locations or for the customer that doesn't want a large power increase. The only benefit of the 160cc is for converting to a more efficient single shot injector with a very small bump in power.

The warranty does not cover injectors that fail due to bad fuel or trash in the oil system. This also applies to the replacement of scored plungers and barrel assemblies due to bad fuel or the labor to break injectors down to clean poppet valves from dirty oil.

The buyer is to understand that these are aftermarket, high performance items, and Diesel Power Products is not responsible for any damage caused to the injectors or engine due to high EGTs, overrevving, engine failure or any other abuse or neglect.

If there is an injector problem, the buyer will have to purchase a new injector and send in the faulty injector. The buyer will receive a refund on the new injector after the faulty injector is inspected and determined to be covered by the above warranty.

  • Casserly injectors are a single shot injector. 1999-2003 7.3L Powerstrokes run a split shot injector from the factory. In order to switch from a split shot to a single shot injector, we recommend running custom tuning software for proper engine/fueling calibration.


  • ManufacturerFull Force Diesel
  • MPNFFDAPST2-160 | FFDAPST2-180
  • Great balance between a towing injector and performance injector
  • Choice of nozzle size to fine tune your needs
  • Fuel economy doesn't suffer (depends on your right foot)
  • A custom tuned chip is necessary to run these injectors because they are converted to single shot
  • Extra modifications for air not necessary, but advised


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Casserly / Full Force Stage 2 New Performance Injector Set (8) 99-03 7.3L Powerstroke

Casserly / Full Force Stage 2 New Performance Injector Set (8) 99-03 7.3L Powerstroke

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