Precision Raceworks G8x/G2x Stand-Alone Auxiliary Fuel System

Precision Raceworks G8x/G2x Stand-Alone Auxiliary Fuel System | ORT Motorsport

Take your BMW’s fuel system to the next level with the Precision Raceworks G8x/G2x Stand-Alone Auxiliary Fuel System—the most advanced and stable low-pressure fuel system on the market. Designed specifically for enthusiasts adding port injection to their turbocharged BMW, this system eliminates the common challenges of upgrading fuel systems while ensuring rock-solid fuel pressure and exceptional performance.

Unlike traditional methods of increasing the output of the stock fuel system, which often leads to instability and inconsistent fuel pressures, this dedicated auxiliary fuel system provides optimal fueling for port injection, ensuring accurate and reliable performance no matter how much boost you’re running. No more fighting with the factory system—embrace true dedicated fueling for port injection and unlock the full potential of your setup.

Fitment:

• Compatible with: BMW G8x & G2x Models
  • Including: G80/G82/G83 M3, M4, and other G-Series and F-Series models with port injection setups

Key Features & Benefits:

• Plug-and-Play Connectors:
  Forget about cutting or splicing your factory harness! This system comes with plug-and-play connectors, making installation easier than ever.

• Billet Aluminum Top Hat:
  Features a high-performance billet aluminum top hat with three high-flow fuel ports, ensuring a clean and durable interface for fuel delivery.

• Dedicated Fuel Pump(s):
  The system comes with a dedicated fuel pump designed specifically for port injection, ensuring stable fuel delivery without taxing your car’s primary fuel system.

  • AFS.425: Single Walbro 450 pump (425 LPH at 3 bar)
  • AFS.460: Single Walbro 535 pump (460 LPH at 3 bar)
  • AFS.640: Dual Walbro 450 pumps (640 LPH at 3 bar)
  • AFS.745: Walbro 450 + Walbro 535 (745 LPH at 3 bar)
  • AFS.800: Dual Walbro 535 pumps (800 LPH at 3 bar)

• Fully Adjustable 1:1 Fuel Pressure Regulator:
  The included billet fuel pressure regulator is fully adjustable, allowing you to run 1:1 scalable fuel pressure relative to boost pressure, ensuring optimal fueling for all performance levels.

• 10 Micron Microglass Fuel Filter:
  A USA-made 10-micron Microglass filter keeps your fuel clean and free from contaminants, ideal for E85 and other high-performance fuels.

• High-Flow PTFE Fuel Lines:
  The system includes smooth bore, high-flow PTFE fuel feed and return lines with AN6 fittings, designed for maximum flow and minimal restrictions. This ensures your port injection system gets the fuel it needs, even at high power levels.

• All Billet Fittings and Connections:
  The system features billet aluminum fuel line fittings and connections, providing a durable and secure fuel delivery solution with no compromises on quality.

• Increased Injector Flow:
  When using the 1:1 regulator feature, you can achieve greater injector flow without having to rely on large injectors, which allows for higher resolution fueling and better tuning precision.

• 100% Ethanol Compatibility:
  All components are designed to be fully compatible with ethanol fuels (including E85), so you can safely run high-ethanol blends for additional performance.

• Expandable & Upgradeable:
  The system is easily expandable, allowing you to add more pumps or make upgrades as your power goals increase. The foundation is set for scalable growth to meet your future fueling needs.

• Tuner-Friendly:
  This system makes port injection tuning easier for your tuner, with more consistent fuel pressures and fewer fluctuations to correct for, allowing for more accurate and reliable results.

Models & Configurations:

• AFS.425:

  • Pump: Walbro 450 (425 LPH @ 3 bar)
  • Flow: 425 LPH
  • Perfect for lower power builds with port injection

• AFS.460:

  • Pump: Walbro 535 (460 LPH @ 3 bar)
  • Flow: 460 LPH
  • Great for mid-range builds and daily-driven setups

• AFS.640:

  • Pumps: Dual Walbro 450 (640 LPH @ 3 bar)
  • Flow: 640 LPH
  • Ideal for high-power builds with port injection

• AFS.745:

  • Pumps: Walbro 450 + Walbro 535 (745 LPH @ 3 bar)
  • Flow: 745 LPH
  • For those pushing big power with port injection and high fuel demand

• AFS.800:

  • Pumps: Dual Walbro 535 (800 LPH @ 3 bar)
  • Flow: 800 LPH
  • For extreme builds requiring maximum fuel flow for port injection

Installation Notes:

• The system includes plug-and-play connectors for easy installation, but some wiring may need to be cut and spliced to integrate the system with the factory harness, as detailed in the included instructions.
• Male AN8-ORB to Female AN6-ORB adapter (sold separately) may be required for compatibility with some fuel rails.

Why Choose the Precision Raceworks Stand-Alone Auxiliary Fuel System?

If you’re serious about port injection on your turbocharged BMW, the Precision Raceworks G8x/G2x Stand-Alone Auxiliary Fuel System is the ultimate solution for maximizing fuel delivery. With a dedicated fuel system, you’ll eliminate the problems of relying on your factory low-pressure system, ensuring consistent fuel pressures, easy tuning, and better performance across all driving conditions.

Whether you're running E85, high-boost setups, or looking to push your port injection system to the limit, this fuel system is the ideal choice for enhancing your BMW’s fueling capabilities.

Transform your car’s fuel system today and experience the benefits of a dedicated auxiliary fuel system with Precision Raceworks—where reliability, performance, and tunability meet.