Precision Raceworks - B58 Big Bore HPFP || Gen 1

The Precision Raceworks B58 Gen 1 Big Bore HPFP is a must for any B58 Gen 1 vehicle looking to make big power on DI fuel system.  To get the absolute most out of your Gen 1 B58  on DI only check out our Stage 2 fuel injectors, they work great together!  Now here at Precision Raceworks, we don't inflate our numbers so when you see someone claiming their fuel pump produces 2x or 3x the fuel that the stock pump does rest assured our pump flows the exact same as theirs.

What sets Precision Raceworks apart:

• 63% more HPFP flow than stock
• Direct fit, with all adapters required
  
• Comprehensive install solution - everything you need is in the box!
• Includes replacement for the factory stainless hard line for a factory-like fit
• Includes PTFE smooth bore fuel supply line
  
• 100% E85 compatible
• Includes comprehensive installation guide

Unlike the S58 with its dual pump setup from the factory, the B58’s are stuck with a single HPFP which is one of the biggest limiting factors keeping you from making more horsepower. This is where the Precision Raceworks B58 Gen 1 Big Bore kit comes in! Flowing an astounding 63% more fuel than stock, the Precision Raceworks' HPFP will provide your engine with the additional fuel it so desperately craves. The Precision Raceworks HPFP kit requires no permanent modifications, allowing you to revert your vehicle to stock in the future.

All of our fuel system products are completely ethanol compatible, giving you the added benefit of being able to run e85 or blended ethanol fuel. Ethanol is wonderful on turbo cars, as it has a higher octane rating and is less prone to knock than premium pump gas.   

This product 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 tuner. We have customer service on staff to provide you with any support that you may need, from installation to tuning. 

Vehicle application list: 

• 1-Series, F20/F21 140i / 140xi, (2014 – 2019) Row Please call to confirm  
• 2-Series, F22/F23 240i / 240xi, (2015 – 2017) Row Please call to confirm 
• 3-Series, F30/F31/F34 340i / 340xi (2016– 2018) North America 
• 4-Series, F32/F33/F36 440i / 440xi (2016 – 2020) North America 
• 5-Series, G30/G31 540i / 540xi (2016 - 2019) North America 
• 6-Series, G32 (GT), 640i (2016-2019) North America 

Frequently asked questions:

• Is this compatible with the Gen 2 B58?

The Gen 1 HPFP & injectors are compatible with the Gen 1 B58 only. The Gen 2 B58, like the one found in the A90 Supra, uses a 350 bar high-pressure fuel system from the factory, whereas the Gen 1 engine uses a 250 bar system. 

Be sure to follow our social media for all of our future B58 developments!

• Is the HPFP compatible with aftermarket camshafts?

Our Big Bore HPFP kit is intended to be used with the factory B58 Gen 1 camshaft. We cannot guarantee compatibility with aftermarket parts.

*Horsepower and Torque numbers are approximate and can vary significantly depending on numerous factors including what supporting upgrades are done to the vehicle, ambient temperature, elevation, fuel octane, fuel quality, and more.  The advertised numbers herein are based on optimal conditions and utilizing proper supporting modifications.  Your results may vary.