THE- Fuel rail set for OEM RS4 intake manifold & THE- HF intake manifold

Product information:

We offer our CNC machined THE- fuel rail in 2 main categories - for the OEM RS4 intake manifold and for our THE- Highflow intake manifold. In addition, both versions are available with one or two fuel pressure regulator housings. In order to be able to regulate the fuel pressure in powerful cars even at idle, we recommend to use our system with the two fuel pressure regulator housings (in combination with one powerful or two fuel pumps). The larger inner cross-section results in a higher flow rate. The fuel rail is available in black or red anodized.

Key information:

• Material aluminum
• Corrosion protection through anodizing
• Connection thread for fuel supply M14x1.5
• Connection thread for fuel pressure regulator housing G1/4

Additional information:

• Our fuel rails can not be mounted on the S4/A6 intake manifold
• The difference between THE- and RS4 fuel rails set is only in the screw-on brackets and intermediate line - this means that the RS4 fuel rail set cannot be mounted on the THE- HF intake manifold and the same applies to the THE- fuel rail set and the OEM RS4 intake manifold.
• When using the Bosch 980cc/1500cc injectors, the THE- fuel rails must be moved down 4mm, because these injectors are 4mm shorter than the OEM RS4 injectors. For a plug&play solution we offer 4mm spacer plates under "options".

Scope of delivery: 

• Depending on option:
  • THE- / RS4 fuel rail set with one fuel pressure regulator housing:
    • left and right fuel rail
    • Intermediate line
    • 1x fuel pressure regulator housing with screw connection
    • Fitting for return line
    • Fitting for supply line incl. hollow screw and sealing rings
    • Closing plug for 2nd fuel rail

• • THE- / RS4 fuel rail set with two fuel pressure regulator housings:
    • left and right fuel rail
    • Intermediate line
    • 2x fuel pressure regulator housing incl. screw connections
    • Fitting for supply line incl. hollow screw and sealing rings
    • Fitting and T-piece for return line
    • Connection hose for return line

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