Earl's Performance Billet EFI Bypass Fuel Pressure Regulators

Earl's Performance Billet EFI Bypass Fuel Pressure Regulators deliver precise, consistent fuel pressure control for electronic fuel injection systems in high-performance street and racing applications. Part of a complete line of fuel system products from Holley Performance, these regulators carry the engineering heritage and motorsport credibility that professional race teams and serious enthusiasts have trusted for decades.

Key Features:

• 6061-T6 billet aluminum construction — precision machined from aircraft-grade billet aluminum for exceptional strength, corrosion resistance, and long-term durability
• Anodized finish — features a black bright dip anodized body and clear bright dip anodized top for corrosion resistance and a clean, professional appearance
• Adjustable fuel pressure — fine-tunable across a wide PSI range to meet the specific demands of a variety of EFI applications and engine configurations
• Bypass return-style design — engineered for use with return-line fuel systems and high-pressure electric fuel pumps for proper fuel circulation and pressure stability
• 1:1 boost reference — includes a manifold vacuum and boost reference port for accurate pressure compensation under all operating conditions, including forced induction
• Broad fuel compatibility — suitable for use with gasoline, diesel, alcohol-based fuels, and modern ethanol blends including E85
• 1/8 in. NPT gauge port — allows easy installation of a fuel pressure gauge for real-time monitoring
• Mounting bracket included — each regulator ships with a mounting bracket for straightforward installation
• Multiple configurations available — offered in several AN port size and flow capacity configurations to suit a range of fuel system layouts

Earl's Performance Plumbing pioneered the use of aviation-grade fluid transfer technology in the automotive performance market, and top professional racing teams continue to rely on Earl's products today. These EFI Bypass Fuel Pressure Regulators reflect that same commitment to precision engineering — making them a reliable, professional-grade foundation for any performance EFI fuel system build.