Nostrum Stage 3 Bundle - Explorer ST

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  • Nostrum Stage 3 Bundle - Explorer ST
  • Nostrum Stage 3 Bundle - Explorer ST
  • Nostrum Stage 3 Bundle - Explorer ST
Now: $4,198.00
Was: $4,398.00
Frequently bought together:


This kit includes the all new Stage 3 injectors and HPFP kit for 1 great price!

What sets Nostrum apart:

  • Largest 3.0L EcoBoost GDI injector available-96% larger than a factory 3.0 EB Injector
  • Direct replacement  
  • OEM comparable spray pattern  
  • Limited Lifetime Warranty 
  • Installation guide provided 
  • Ethanol compatible  
  • Allows operation of engine at significantly reduced fuel rail pressure while still achieving very high power levels

They’re finally here! The long awaited and highly anticipated Stage 3 injectors for the 3.0L Ecoboost Ford Explorer ST are now available. With a mind-blowing increase of 96% more fuel than the stock injector, the Stage 3s are what you want when you have a built engine, larger turbos, and the desire to push them to the absolute limit. 

Why Stage 3? More flow of course! One of the hurdles with DI is that as you increase pump pressure, the volumetric efficiency goes down. By lowering commanded pressure from 24 MPa to 20 MPa, the pump gains approximately 5% in flow rate that the Stage 3's are able to take advantage of! More flow, more horsepower!

Being that everything is installed like a factory part, there’s no need to worry about secondary injection controllers, filling meth tanks, clogged meth injectors, or any of the other complex solutions that remove layers of protection and safety from your engine. Our injectors operate with all the OEM ECU’s engine management system diagnostics and safety functions – resulting in a much happier and responsive system! 

Inside the box, you will find everything you need to get your new injectors installed quickly, including detailed application specific instructions for a no-nonsense install. When you are ready to tune, we can get you set up with one of our trusted certified tuners, or we have injector tuning data available for your existing tuner.  

Take your Nostrum Stage 3 injectors to the limit by pairing them with our HPFP upgrade kit, flowing an incredible 47% more fuel than the stock pumps! That additional fuel flow allows for significant torque increases earlier in the rev range, and provide the injectors with all the fuel they need to make more peak horsepower, when properly tuned.

Every Nostrum manufactured part is backed by a limited lifetime warranty. Our products are comprehensive solutions that come complete with everything you need inside the box, including detailed installation instructions. Tuning guides are also available for your dealer or tuner. We have customer service and calibration engineers on staff to provide you with any support that you may need, from installation to tuning. 

Why is spray pattern important?

While increasing flow rate is critical to making more horsepower, there are other factors to consider when choosing fuel system upgrades. A bigger injector isn’t always a better injector! It can flow a large volume of fuel at WOT, but if the spray pattern is poor, you can expect poor idle quality, poor drivability, increased knock propensity, soot, NVH (noise vibration harshness,) and tuning difficulty. Additionally, the wrong spray pattern can result in liquid fuel impinging in the cylinder walls, causing oil dilution, which increases mechanical wear to internal engine components.

Nostrum has invested significant time and resources into acquiring the equipment and machinery necessary to deliver an OEM level of quality on our injectors. Our spray patternation and arc flash machines (images below) give us an unparalleled look at how an OEM injector is designed and how it operates.  Our engineers design and develop injectors to optimally interact with engine air flow inside the combustion chamber to improve fuel evaporation and create a homogenous air-fuel mixture that results in a higher combustion quality. For you, this means that you can expect our injectors to perform at their absolute best regardless of what you are asking from them, from daily driver duty to setting new ¼ mile records.


Vehicle application list: 
  • 2020-2023 Ford Explorer ST 
  • 2020-2023 Lincoln Aviator 
  • 2020-2023 Police Interceptor Utility 
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