BMP N54 / N55 Port Injection Kit

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**** Kit now includes extended studs instead of bolts!!****

Running out of fuel?  Our Port Injection Kit is the answer!  

We have developed this port injection to fit both the N54 & N55 motors that will provide you with the additional fueling needed in cars running 100% E-85, upgraded high performance turbos, or both!


Why do I need port injections can I just upgrade my current injectors like I did in my old car?


Unfortunately no, there are no upgraded injectors available on the market and even if there were the high pressure fuel pump is a weak link which also does not have a high output easy to replace version available on the market.


What makes the Black Market Parts port injection kit right for you?

  • 100% New Genuine Bosch 750cc Injectors (Certificates of Authenticity from Bosch included to verify on Bosch website)

  • All injectors have been flow tested by a 3rd party lab to tolerances which rival top labs in the country (Calibration Certificate included)

  • Fuel manifold designed for even fuel distribution across all 6 cylinders to reduce pooling issues and complement the precision injectors used in this kit

  • Full bore AN-6 fuel rail for highest possible flow and even fuel distribution across all 6 injectors, with 4 AN-6 ORB ports to fit most upgraded fuel lines available

  • Fuel line made by Precision Raceworks to be fully E-85 compliant and providing double seals on the HPFP line connection to ensure leak free operation and simple install

  • Easy to source replacement gaskets (We designed the kit to use the same gaskets for the port injection as your factory manifold for easy replacement)


Our port injection kit includes:

  • Pre-assembled Manifold & Fuel Rail with injectors installed

  • 6 OEM BMW manifold gaskets (For port injection manifold)

  • Serialized fuel injector Calibration Certificate



    • Factory style quick connect fuel line for easy install

    • Bosch Certificates of Authenticity



      • All Necessary hardware for install

      We have a 20-day return policy, which means you have 20 days after receiving your item(s) to request a return. Please note we charge a 25% restocking fee on all returns. To be eligible for a return, your item must be in the same original/new condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at Items sent back to us without first requesting a return will not be accepted. You can always contact us for any return question at Please inspect your order upon arrival, and contact us immediately if the item is defective, damaged or if you received the wrong item, so that we can evaluate the issue and make it right.

      Exceptions/non-returnable items:

      Certain items cannot be returned, like sale items, perishable goods, custom products (such as special orders or personalized items), hazardous materials, flammable liquids, and/or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on sale items or gift cards.


      The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.


      We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember, it can take some time for your bank or credit card company to process and post the refund.