Gen-2 Pump Assembly

• RXP-255JE Turbine: High-pressure turbine capable of stable flow for performance applications.
• Advanced Jet Pump Integration: Maintains a full reservoir regardless of tank level to prevent pump cavitation.
• 6061-T6 Anodized Aluminum: Provides active thermal management and 50% more surge volume than stock.
• Fully Serviceable: The modular design allows for complete disassembly and cleaning.
• E85 Optimized: 100% compatible with all ethanol blends and racing fuels.

28-Amp Redundant Electrical

• Redundant Architecture: Utilizes dual 14-gauge positive paths to double the factory current capacity.
• FPWH-052 HD Hotwire: Features Heavy-Duty 630-series 40A hardware for maximum voltage delivery.
• PBIC-001 Booster Interface: Includes connector set for plug-and-play integration of pump voltage boosters (e.g., Kenne Bell BAP).
• ITWH-055 In-Tank Harness: Teflon-insulated E85-compatible wiring with redundant leads.
• BCA-4W Bulkhead: Heavy-duty replacement bulkhead specifically pinned for redundant current.

Level Sensor Alert

Check or replace your fuel level sensor during installation to ensure gauge accuracy. Sulfur contamination is a common failure point on C5 sensors.

Leak Prevention

We highly recommend a new FSGK-C5 (97-99) or FSGK-C5A (00-03) seal and bolt kit to ensure a leak-free seal.

Q: I have installed the harness and module, but the pump will not turn on. What is the most likely cause?

A: The most common installation error is failing to connect the High-Current Ground Terminals to the tank perimeter bolts. Because we have relocated the pump grounds to offload heat from the bulkhead connector, the pump will not have a complete circuit until these ring terminals are securely fastened to the metal fuel tank flange. Ensure the mounting surface is clean and providing a solid electrical ground.

Q: Can I install the wiring or pump separately?

A: No. This is an integrated system. The bulkhead pinout is reconfigured for redundant 28-amp power. The new module will not work with factory wiring, and the new harness will not work with a factory pump.

Q: Is an aftermarket regulator required for this kit?

A: While the 255 kit works with factory regulators, users moving toward high-HP expansion or requiring 1:1 manifold referencing should consider the FLK-C5 Fuel Line & Rail Kit.

Q: Why does my electronic fuel pressure gauge show low pressure when hot?

A: Rail-mounted electronic sensors are prone to heat soak, causing false low readings. Always verify system health with a liquid-filled mechanical gauge at the Schrader port during troubleshooting.

Q: How do I ensure the BCA-4W bulkhead is oriented correctly?

A: Alignment is critical. Match the E, B, C, D markings on the ITWH-055 in-tank harness with the corresponding molded letters in the center of the bulkhead top. Note: Edge letters A-D are for the HD Hotwire interface only.