SKU: 85833870947

G8x/G2x Stand Alone Auxiliary Fuel System

$737.10 $819.00
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Description

G8x/G2x Stand Alone Auxiliary Fuel SystemThe Precision Raceworks G8x G2x Stand Alone Auxiliary Fuel System is the highest performing and most stable low pressure fuel system on the market! Forget about how things have been done and embrace the benefits of dedicated fueling for your port injection! Since direct injection came out for BMW, enthusiasts have been adding port injection. With this came the need to upgrade the low pressure fuel system to keep up. Historically this was done by

The Precision Raceworks G8x/G2x Stand Alone Auxiliary Fuel System is the highest performing and most stable low pressure fuel system on the market! Forget about how things have been done and embrace the benefits of dedicated fueling for your port injection!

Since direct injection came out for BMW, enthusiasts have been adding port injection.  With this came the need to upgrade the low-pressure fuel system to keep up.  Historically this was done by increasing the output of the main fuel system.  Unfortunately, the main fuel pump is controlled using PWM by a factory programmed controller designed to reduce output when target fuel pressure (typically 5 bar) is exceeded, creating a constant battle when pumps are added or upgraded.  This limits upgraded fuel pumps from performing to their full potential.

Additionally, the high pressure pump control system dumps fuel back into the low pressure system at high pressure low volume resulting in oscillations of the low pressure fuel system.  Because of this the DI system in the car is required to constantly make corrections to keep target AFR in check.

With this stand-alone low-pressure fuel system dedicated to your port fueling that is a thing of the past!  Get rock solid fuel pressures at any pressure, run fuel pressures which are 1:1 scalable to boost pressure, flow more fuel with dedicated lines, run smaller injectors and still get more fuel than you did with large injectors (allowing for higher resolution), put less demand on the car’s DI system to correct for fluctuations in pressure, even your tuner will be grateful as the system makes tuning of port fueling even easier and more accurate, the list of benefits goes on and on!


Features & Benefits

  • Billet Aluminum top hat with 3 high flow fuel ports
  • Dedicated fuel pump(s) for port injection system
  • Optimal pump location resistant to fuel slosh under acceleration
  • Fully adjustable 1:1 scaling billet fuel pressure regulator
  • 10 micron USA made Microglass fuel filter (Ideal for E85)
  • Smooth bore high flow PTFE fuel feed & return lines (AN6)
  • All billet connections for both fuel line fittings and top-hat
  • Plug and play connectors inside and outside* the top hat
  • Configurable pump activation harness (see instructions for more details)
  • Increased injector flow (when using 1:1 regulator feature vs static)
  • Compatible with all stock or upgraded primary fuel pumps
  • Easily expandable and upgrade-able for more fuel
  • All components and parts feature 100% Ethanol Compatibility


Models & Configurations

  •  AFS.425
    The AFS.425 dedicated auxiliary fuel system comes with all** necessary components to provide dedicated fuel system for port injection.  Featuring a single Walbro 450 (F9000274) fuel pump which flows 425LPH at 3 bar.
  •  AFS.460
    The AFS.460 dedicated auxiliary fuel system comes with all** necessary components to provide dedicated fuel system for port injection.  Featuring a single Walbro 535 (F9000295) fuel pump which flows 460LPH at 3 bar.
  •  AFS.640
    The AFS.640 dedicated auxiliary fuel system comes with all** necessary components to provide dedicated fuel system for port injection.  Featuring Two Walbro 450’s (F9000274) fuel pumps with a combined flow of 640LPH at 3 bar.
  •  AFS.745
    The AFS.745 dedicated auxiliary fuel system comes with all** necessary components to provide dedicated fuel system for port injection.  Featuring One Walbro 450 (F900074)  & One Walbro 535 (F9000295) fuel pumps with a combined flow of 745LPH @ 3bar.
  •  AFS.800
    The AFS.800 dedicated auxiliary fuel system comes with all** necessary components to provide dedicated fuel system for port injection.  Featuring Two Walbro 535’s (F9000295) fuel pumps with a combined flow of 800LPH at 3 bar.


*At time of install some wiring in the car may need to be cut and spliced to connectors included in this kit

**Male AN8-ORB to Female AN6-ORB adapter may be required for compatibility with some fuel rails (not included in kit)

Shipping Notes
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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]
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SKU: 85833870947

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I was sensitive to the regular Xylimelts after a few months use. Painful gums and hives inside my lips and cheeks. The sensitive version immediately corrected the problem and I’ve been using them without issue for nearly a year. The product is a lifesaver for drymouth that occurred when I was sleeping.
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These are the best for dry mouth at night. They mostly stay stuck. I say mostly because I have had a few come apart. I think that was my fault.
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This book came highly recommended by a fellow entrepreneur I trust, and I started listening to it almost immediately after purchasing—and I’m so glad I did. Who Not How has completely shifted the way I think about growth, productivity, and collaboration in my business. It's now a staple recommendation I make to all the entrepreneurs I work with. It’s insightful, empowering, and essential for anyone looking to scale their impact by working smarter—not harder. If you’re building a business or leading a team, this one’s a no-brainer. Pros: Powerful Mindset Shift: The central idea—stop asking “How can I do this?” and start asking “Who can help me do this?”—is simple but transformative. It helped me rethink delegation, collaboration, and building a team. Actionable for Entrepreneurs: As someone who works with social entrepreneurs, this book now tops my list of recommendations. It’s a game-changer for anyone feeling stuck, overwhelmed, or trying to do everything themselves. Engaging & Easy to Digest: Whether you’re reading or listening, the content flows well and feels conversational. It’s packed with real-world examples that make the concepts stick.
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The impact on business success is exponential for those implementing Dan Sullivan’s “Who Not How” model. The strategic framework presented in the book has fundamentally altered the way entrepreneurs navigate the challenges of running and growing their businesses. The model is a game-changer, shifting from the traditional “how” to the more effective “who.” Below are a few key points: Define Your Unique Value Proposition (UVP): The model encourages businesses to articulate what sets them apart, fostering a deep understanding and effective communication of their unique value. It provides guidance on identifying specific topics and themes that resonate most with the target customers, resulting in a more targeted and impactful approach. Identify Key Tasks: The book prompts entrepreneurs to compile a comprehensive list of tasks crucial for business operations and growth, including marketing, branding, and sales. Categorize Tasks: Categorizing tasks into areas of expertise, such as marketing, operations, content creation, and sales, clarifies resource allocation for optimal results. Prioritize High-Impact Tasks: The model assists in identifying tasks with the highest impact on business growth, such as creating compelling content, building a robust online presence, and securing motivated customers. Identify “Whos”: The transformative recommendation to identify experts or partners for specific tasks has proven beneficial. Hiring specialized individuals, like a virtual assistant for administrative tasks, a marketing expert for online promotion, and dedicated customer service, enhances efficiency and customer satisfaction. Build a Team of Experts: Assembling a team of individuals with complementary skills is a game-changer. Leveraging the efficiency of freelancers, agencies, and part-time professionals fulfills specific roles, contributing to overall business growth. Dan Sullivan’s “Who Not How” model is more than just a book; it’s a strategic guide empowering businesses to leverage expertise and build a team capable of achieving remarkable results. The book is highly recommended to fellow entrepreneurs seeking exponential business growth. ~ Linsey Mills
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