B58 Gen 1 Gauntlet HPFP Upgrade

Precision Raceworks is proud to present the Gauntlet High Pressure Fuel Pump for the B58 Gen 1 engine.

This cutting-edge pump flows 70% more fuel than the stock pump and offers an additional 4% over our original Big Bore HPFP. Designed for enthusiasts who demand the best, the Gauntlet delivers top-tier performance at a competitive price, making it the best value on the market for high-performance B58 fuel systems.

Features:

- +70% fuel flow compared to stock pumps.
- Robust cast stainless steel construction for a compact, durable design.
- Plug-and-play installation with no modifications required—fully reversible for future projects.
- Comprehensive installation kit  including a high-capacity HPFP, low-pressure inlet tube with Teflon internals, stainless steel high-pressure outlet tube, pump adaptation flange, flange alignment tool, electrical harness adapter, and all necessary installation hardware.
- Color installation guide and serialized pump flow test data sheet included.
- Leak and pressure tested stainless tubes for maximum reliability and serialized for traceability.

Performance:

The Gauntlet HPFP supports 240 bar of fuel rail pressure and has been rigorously tested through 60,000 miles of real-world driving in various conditions. Whether you’re running pump gas, E85, or other fuel blends, this pump has passed computational fluid dynamics analysis, kinematic and structural testing, and over 120 hours of dynamic testing, ensuring it meets or exceeds all performance standards.

Value Proposition:

1. Best HPFP Upgrade for Gen 1 B58: Offering the best performance-to-price ratio available, the Gauntlet HPFP outperforms the competition at it is the highest flowing pump on the market and at a lower cost!
2. Simple, Reversible Installation: The pump installs quickly without any permanent modifications, making it easy to revert to stock when needed.
3. Optimized for Maximum Power: Compatible with the largest injectors on the market, allowing you to push the limits of direct injection power.

Compatibility:

- Plug-and-Play for B58 Gen 1 Engines
- Requires tuning after installation.

Frequently Asked Questions: 

• How does the Gauntlet differ from the Big Bore HPFP?
  •  The Gauntlet features a larger piston and a cast stainless steel design, offering more flow at a reduced price, while still supporting up to 240 bar fuel rail pressure.
• Can I install the Gauntlet pump myself?
  •  Yes! The kit includes all the hardware and tools needed for installation. A tune is required after installation, and tuning guides are provided.
• Is this pump compatible with E85?
  • Absolutely. The Gauntlet has been tested with various fuels, including E85, ensuring reliable performance regardless of fuel type.
• Why does this pump look different from other models?
  • The cast stainless steel design allows for a more compact form factor and unique surface finish compared to machined pumps.

Push the limits of your B58 Gen 1 engine with Precision Raceworks' Gauntlet High Pressure Fuel Pump—engineered for power, reliability, and unbeatable value.

*Vehicle fitment and tuning is only guaranteed for North America Spec vehicles

The items installed or applied to vehicles are intended strictly foroff-road use onlyandtrack vehicles. These modifications may not comply with emissions, safety, or environmental regulations required for public road use underEnvironmental Regulatory Agency (ERA)laws. It is the sole responsibility of the vehicle owner or operator to ensure adherence to all applicable local, state, and federal regulations. Use on public roads may result in legal penalties or vehicle impoundment. Always verify compliance with local authorities before installation.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

If you're unsure whether a part will fit your vehicle, feel free tocontact us herewith your inquiry. Our helpful sales team will reach out to confirm if it's the right match for you.

We offer a flat-rate shipping fee across thecontinental United States. This excludes Alaska, Hawaii, and U.S. territories. For international orders, additional shipping costs will apply. Please contact us for a quote if you are outside the continental U.S.

Also, feel free to also contact us at ColoradoN5X@Gmail.Com for any other questions.

Not all items are covered by warranty. Items including warranty, will clearly state that there is warranty within the product description. Most of these items will be a standard 1-year warranty against manufacture defects. You, the customer, will be responsible for shipping and handling. We will fix/replace that item with a product that is in working condition if you meet the warranty criteria. Please note that you will be allowed ONLY 1 claim within the year for that product. ColoradoN5X is not responsible for any damage caused during the installation of our products.