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SpeedFactory Billet K-Series -10AN Mega Flow Fuel Rail

$177.99 $156.99


SpeedFactory Billet K-Series -10AN Mega Flow Fuel Rail

We set out to build the ideal K-Series fuel rail that will work for everyone from the bolt-on K-swapped street car to a 2000+hp methanol monster like our Outlaw car. The SpeedFactory Billet K-Series Mega Flow -10AN Fuel Rail is the result!

Our Mega Flow rail features a GIGANTIC 0.806” fuel bore with -10 ORB inlet/outlets and Viton O-rings. Perfect for high volume ethanol & methanol fuels, and the large internal volume helps dampen the pressure pulses created by the massive fuel injectors now commonly being used.

Three (3) -10 ORB ports allow user the option to feed or return from the ends OR under the center of the rail for a sleek, tucked look.

Vehicle Application/Fitment: All K-swapped ‘88-‘00 Civic / ‘90-‘01 Integra chassis and any universal K-swap applications. Fits most K-Series engines except direct-injection K20C and K20B engines.  Fits RBC, PRB, and RBB intake manifolds and almost any aftermarket intake manifold.

Product Features:  

  • Precision CNC machined from 6061-T6 billet aluminum
  • Black Anodized finish throughout adds durability & eliminates corrosion
  • Laser-etched SFR logo
  • -10AN ORB Inlet/Outlet ports with massive 20.4mm (0.806”) fuel bore supports even the most demanding 2000+hp turbocharged setups on high volume alcohol-based fuels
  • Center feed/return port for tucked fuel line routing if desired
  • One (1) 1/8 NPT port for fuel pressure takeoff option (example: gauge, sending unit, or wet nitrous feed) and includes one (1) Stainless Steel 1/8 NPT plug
  • One (1) additional M6x1.0 threaded hole that can be used for mounting bracket (example: EBC solenoid, wiring d-ring, etc)
  • Includes two (2) Stainless Steel M8x1.25x25mm socket head cap screws for fuel rail mounting & one (1) -10 ORB Male to -6AN Male feed fitting and two (2) -10 ORB Port Plugs for use with your commonly seen -6AN fuel system setups.


  • Always make sure to thoroughly flush out any new fuel system components before use to make sure you do not get debris into your fuel injectors.
  • Always check for fuel leaks before starting the engine.
  • Replace all crush washers, o-rings, cushion rings, seal rings, and insulators when fuel rail is disassembled.
  • Different combinations of fuel injectors, adaptors, and intake manifolds require various spacers/adaptors/o-rings/etc for proper installation. This is a normal part of setting up your fuel system and you will need to figure out the appropriate parts for your specific combination.
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