Skunk2 350-05-6000 Ultra Race Primary Fuel Rail Honda Acura B-Series 1200HP

Vehicle Fitment

• 1999-2000 Honda Civic Si (B16A 1.6L)
• 1994-1997 Honda Del Sol VTEC (B16A 1.6L)
• 1992-2001 Acura Integra (B18A/B18B 1.8L - GS/LS)
• 1994-2001 Acura Integra GS-R (B18C1 1.8L)
• 1997-2001 Acura Integra Type-R (B18C5 1.8L)
• 1992-1993 Acura Integra (B17A1 1.7L - GS-R)

Fitment Notes

• Designed specifically for use with the Skunk2 Ultra Race Intake Manifold (B-Series) - this fuel rail mounts to the Ultra Race Manifold's injector bungs and is NOT a direct replacement for the factory fuel rail on the stock intake manifold
• Requires a remote-mounted external fuel pressure regulator - an inline or remote regulator must be used; this rail does not include or support an integrated fuel pressure regulator
• Primary fuel rail - sold individually as the primary rail; a secondary fuel rail is available separately for dual-rail high-flow setups
• Compatible with gasoline, E85, and methanol fuels

Features

• Supports up to 1,200 HP - 0.669-inch internal bore delivers the fuel volume required to support extremely high-output naturally aspirated and forced induction builds on B-Series engines
• 0.669-inch (17mm) internal bore - significantly larger than OEM fuel rail bore; reduces fuel pulsation and pressure drop at high injector duty cycles for consistent fuel delivery across all cylinders
• -8 ORB (O-Ring Boss) end ports - high-flow, leak-resistant fittings rated for high-pressure fuel systems; compatible with -8 AN fittings via standard ORB adapters
• Compatible with E85 and methanol - hard anodized finish and billet aluminum construction resist corrosion and degradation from alcohol-based fuels
• CNC-machined from billet 6061-T6 aluminum - precision-machined bore and injector outlets ensure consistent fuel delivery and dimensional accuracy across all injector ports
• Hard anodized black finish - corrosion-resistant surface treatment compatible with all fuel types including E85 and methanol; matches Skunk2's signature black anodized appearance
• Developed specifically for the Skunk2 Ultra Race Intake Manifold - engineered to mate correctly with the Ultra Race Manifold's injector cup geometry and spacing

Specifications

• Part Number: 350-05-6000
• Series: Ultra Race Primary Fuel Rail
• Engine Compatibility: Honda/Acura B-Series (B16A, B17A1, B18A/B, B18C1, B18C5)
• Manifold Compatibility: Skunk2 Ultra Race Intake Manifold (B-Series)
• Material: Billet 6061-T6 aluminum
• Finish: Hard anodized black
• Internal Bore: 0.669 inch (17mm)
• End Port Size: -8 ORB (O-Ring Boss)
• Max Supported Power: 1,200 HP
• Fuel Compatibility: Gasoline, E85, Methanol
• Regulator: External/remote-mount required (not included)
• UPC: 873265007738
• Quantity: 1 (primary rail, sold individually)

Included Components

• 1x Skunk2 Ultra Race Primary Fuel Rail (billet 6061-T6 aluminum, hard anodized black)

Product Description

The Skunk2 350-05-6000 is the Ultra Race Primary Fuel Rail engineered specifically for Skunk2's B-Series Ultra Race Intake Manifold. Designed by Skunk2's engineering team to complement the Ultra Race Manifold's high-flow design, this rail provides the fuel delivery infrastructure required to support up to 1,200 HP on B-Series Honda and Acura engines - covering B16A, B17A1, B18A/B, B18C1, and B18C5 applications including the Integra Type-R.

The 0.669-inch internal bore is substantially larger than OEM fuel rail dimensions, reducing injector pulsation and pressure variation across the rail at high injector duty cycles - a critical factor in maintaining consistent fuel delivery at power levels far beyond the reach of factory components. The -8 ORB end ports provide a high-flow, leak-resistant connection point compatible with -8 AN fittings. CNC-machined from 6061-T6 billet aluminum and hard anodized black, the rail is fully compatible with gasoline, E85, and methanol. Note: this rail requires an external remote-mount fuel pressure regulator - no integrated regulator port is included. Compatible with Skunk2 Ultra Race Intake Manifold only - not a direct replacement for the stock intake manifold's factory fuel rail.