Fuelab Regulator (This is the regulator used in the OBS fuel systems)

Fuelab 515 Series Fuel Pressure Regulator – Black, -6AN (EFI 25–90 PSI)

The Fuelab 515 Series Regulator is built for precision, reliability, and multi-fuel performance. Designed with dual -6AN inlet ports, a -6AN return port, and a standard seat, this regulator is perfect for EFI applications requiring 25–90 PSI. Compact, durable, and fully adjustable, it’s the same regulator we trust in all of our in-house fuel systems.

🔥 Key Features:

• -6AN Ports – Two inlet ports and one return port for flexible plumbing setups

• EFI Compatible – Pressure range: 25–90 PSI (standard seat, EFI spring)

• Multi-Fuel Ready – Compatible with gasoline, diesel, methanol, and ethanol

• Billet Aluminum Construction – MIL-A-8625 Type II anodized finish for durability

• Precision Adjustment – Fine thread pitch for accurate pressure control

• Mount Anywhere – Includes versatile bracket and stainless hardware

• Gauge & Reference Ports – 1/8” NPT gauge port (plug included) and pressure reference port with barbed fitting

⚠️ Important Note: Fuelab does not accept returns. All sales are final.

✅ Proven Performance:
This is the same regulator we run in all of our complete fuel systems — built to handle the demands of high-performance street, race, and diesel applications.