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Demon / Redeye L4 Fuel System (Triple Pump)
Fuel Rail Option
Black (OE Supercharger)
Clear (OE Supercharger)
Black (Whipple 4.5L) (add $31)
Black (Kenne Bell 4.7L) (add $31)
Delete Fuel Rails (add $-435)
Primary Fuel Pump
Walbro GSS342 (add $85)
TI Auto F90000274 (add $115)
TI Auto F90000285 (add $150)
Secondary Fuel Pumps
2 x TI Auto F90000274 (add $230)
2 x TI Auto F90000285 (add $300)
Electrical Wiring
None (I have my own fuses, wiring, relays, etc)
FC2 Controller with 6 gauge wiring (add $209)
FC3 Staged Controller with 4 gauge wiring (add $249)
Sealed Delphi Connector and 7' 12 AWG pigtail (add $25)
Fuel Lines
PTFE -8 Feed / Return
FlexLP -8 Feed / Return
Startlite -8 Feed / Return
Upgrade to -10 Feed (add $65)
Filtration Media
Microglass SSD (add $19)
Stainless Steel (add $32)
Fuel Filter Upgrades
Upgrade to 128mm Filter (add $30)
Add billet mounting bracket (add $45)
Add filter monitoring gauge and fitting (add $59)
Fuel Pressure Sensor
Delete OE Fuel Pressure Sensor
Inline Aftermarket Sensor (add $86)
Regulator Mounted Aftermarket Sensor (add $52)
System Options
0-100 psi Fuel Pressure Gauge (add $27)
Honeywell Pressure Switch for FC3 (add $45)
Flex fuel sensor intercept fittings (add $69)
Boost / Vacuum Manifold Kit (add $75)
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Demon / Redeye L4 Fuel System (Triple Pump)

Boost Referenced Return System for 1800+ rwhp. Traditional parallel feed, post regulated configuration ensures best fuel delivery consistency. Our compact y-block splits the feed evenly to each rail, then each rail feeds back to the regulator.


  • Demon / Redeye Fuel Pump Module (Triple Pump)
  • F2i Fuel Pressure Regulator
  • 88mm Inline Fuel Filter
  • Compact billet y-block
  • Billet Demon / Redeye Hemi Fuel Rails
  • Demon / Redeye OE Feed Line Blockoff Plug
  • OE Demon / Redeye passenger side tank module
  • OE Demon / Redeye driver side level sender
  • All fittings, hose, hardware required for typical fuel line plumbing

-30 feet of fuel line and 10 matching hose ends (your choice)
-Qty 6, billet low profile 90 degree o-ring fittings
-Qty 8, straight AN to ORB fittings
-Qty 2, billet low profile 180 degree o-ring fittings
-Qty 2, -8 ORB 1.25" port extensions
-Qty 10, hose straps and mounting screws

Notes on Demon / Redeye OE Fuel Pressure Sensor Options:
By default, our fuel system will delete the OE fuel pressure sensor. Due to popular request, we have added the following provisions for the fuel pressure sensor, which must be selected by the purchaser:


  • Delete OE Fuel Pressure Sensor
  • Inline Aftermarket Sensor: includes a new AC Delco sensor and provisions to mount in a high flow coupling with two more hose ends. In L2 and L4 systems, this can be installed without extending the OE electrical harness; however, extension of the OE harness may still be required on L3 systems.
  • Regulator Mounted Aftermarket Sensor: includes a new AC Delco sensor and an adapter to mount directly on the fuel pressure regulator. The installer will have to extend the OE electrical harness to accommodate the new location of the sensor.
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