SKU: 99722541420

Nostrum 2.0L Subaru FA20F Direct Injectors ‐ New Rev

Sale price$15223.50 Regular price$16915.00
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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26

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Description

Nostrum 2.0L Subaru FA20F Direct Injectors ‐ New RevWhat sets Nostrum apart: +10% flow rate increase over stock The only DI injector upgrade on the market for FA20F that works with stock ECU! Set of 4 batched and serialized injectors with tuning data E85 compatible Direct Replacement same outline as the OE injector OEM equivalent spray pattern OEM ECU controlled (COBB tuning recommended) ***Newly revised with a new part number. The same great performance you have come to expect from Nostrum, now with

What sets Nostrum apart:

  • +10% flow rate increase over stock 
  • The only DI injector upgrade on the market for FA20F that works with stock ECU! 
  • Set of 4 batched and serialized injectors with tuning data 
  • E85 compatible 
  • Direct Replacement - same outline as the OE injector
  • OEM equivalent spray pattern 
  • OEM ECU controlled (COBB tuning recommended) 

***Newly revised with a new part number. The same great performance you have come to expect from Nostrum, now with faster closing times!***

These injectors have been carefully developed to fit like factory and have no compatibility issues with a stock WRX FA20F engine, meaning there’s no need to worry about secondary injection controllers, fitting secondary injector hardware, filling meth tanks, or clogged meth injectors. Being that they are compatible with the stock ECU, they are fully tunable with Cobb or EcuTek. 

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 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.

Bundle up!

To take full advantage of your new injectors, we would recommend pairing them with Nostrum’s HPFP upgrade for the FA20. Flowing 40% more than the factory pump, the Nostrum HPFP will not only allow you to dial in more torque earlier in the rev range, but also gain peak horsepower by providing the upgraded injectors with the additional fuel that they need! Bundling the pump and injectors together saves you money! 

Peace of mind.

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.

Contents: 

  • Set of 4 injectors, tested & batched set with serial number
  • Installation instructions 
  • Tuning guide (Dealer & Certified Tuners only)** 
    **This guide only works with the current injector part number H720-1813 - Injectors purchased before March 1, 2024 with a part number of H703-1254 will use the previous tuning data, contact us for the correct guide! **
Vehicle application list: 
  • 2015-2021 WRX FA20F (VA Chassis) 
  • 2014-2018 Forester XT FA20E [2.0L turbo FA20 engine] 
  • Note – not direct fit for 2022 model year WRX FA24 
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99722541420

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4.9 ★★★★★
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Verified Purchase
LJB
Charlottesville, US
★★★★★ 5
My dog likes it!
Size: Medium, Color: Antler, Size: Medium, Color: Antler
My aggressive chewer loves it! I have a 20 pound rat terrier ....small was recommended, but we went with a medium. He went to work on it right away. He is not picky about chew bones but it makes me feel better that it is a natural material. The chewed photo is about 30 mins after giving it to him.
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Reviewed in the United States on May 7, 2026
A
Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 3
Not for us!
Size: Large, Color: Antler
I'm sure for a dog that doesn't chew, would be great. Ours went through it in days, leaving sharp shards and making his gums bleed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
Y
Verified Purchase
Y. Dulak
Fort Morgan, US
★★★★★ 5
Keeps pups busy, good for chewers.
Size: Medium, Color: Antler
My dogs love this product. Keeps them busy and it lasts. Just watch out for your feet when they drop it! Heavy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
M
Verified Purchase
Margaret F.
Boise, US
★★★★★ 5
Power Chewer Loves This!
Size: Medium, Color: Antler
This is my dog's new favorite chew! She loves that she can hold it in her paws. I think she really loves the taste and texture of it. I don't give her antlers as I have heard too many horror stories about broken teeth. I also don't give her nylon toys as I have also heard a lot of horror stories of broken teeth as well as concerns about them digesting the plastic. This is between antlers and bully sticks, which is perfect for a power chewer. I feel comfortable with her eating the pieces that flake off this toy. She loves chewing and she will default to this toy when she wants to help calm down. I don't notice much of a smell. It does flake, but not enough I will even take a star off. Plus, it's plant based and vacuums up easily once dried. It doesn't capture her attention as much as bully sticks or beef cheek chews, but it's much less expensive over time and doesn't stink up our living room! She will also always pick this over any of her rubber chews. Great product and recommend it for all the power chewers.
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Reviewed in the United States on September 23, 2025
J
Verified Purchase
JA
Alexandria, US
★★★★★ 3
Crumbly, odd texture
Size: Large, Color: Duo Pack
Neither of my dogs were very interested in these. They did chew on the antler-shaped versions more so than the infinity-style versions. When they did chew on these, they didn’t hold up well or last long. These have a strange, crumbly texture when chewed. You’ll find bits and pieces of these chews where the dogs have been chewing. Will not be reordering.
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Reviewed in the United States on April 5, 2026

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