THE- RS4 Highflow intake manifold

Product information:

• This item is our THE- Highflow intake manifold designed specifically for the V6 engine in the Audi RS4 B5. The intake manifold is made the same as the OEM part using aluminum casting process. It can be installed on RS4 cylinder heads as well as on naturally aspirated cylinder heads (2,4/2,8l). In order to achieve an optimal flow rate, an adjustment of the cylinder head channels is necessary. Our channel size at the flange to the cylinder head is 29.3×58.1mm. The opening to the throttle body is the same as the RS6 throttle body (82mm) and is sealed with an o-ring, thus an Rs4 throttle body or a machined 82mm throttle body can be installed. For mounting the intake manifold must be used up to 4 pieces, the original screws.

Advantages over the OEM part:

• Higher flow rate thanks to larger and improved channel routing.
• Flow optimized design
• Uniform cross section narrowing
• Larger modified manifold
• The position of the injection nozzles is more streamlined, resulting in better mixture formation

Additional information:

• For easier machining of the cylinder head channels, we recommend our THE- template for intake manifold:
  • THE- Template for intake manifold
• For a plug&play solution use our fuel rails- see options
• We also offer a compatible cast aluminum Y (RS4 & RS6) and matching 82mm throttle body:
  • THE- pressure Y
  • Bosch 82mm throttle body machined for RS4 bolt circle with plug
• So that the activated charcoal tube can be mounted Plug&Play, we recommend THE- Angle hose to check valve for activated carbon tank for THE-intake manifold with to install.

Scope of delivery:

• Depending on option:
  • THE- HF Intake manifold:
    • Intake manifold
    • Gaskets for intake manifold
    • 4x cylinder head screws for mounting the intake manifold
    • Bracket for exhaust gas temperature sensor
    • All required screw-in tools

• • THE- HF Intake manifold set with fuel rails and a fuel pressure regulator housing::
    • Intake manifold
    • Gaskets for intake manifold
    • 4x cylinder head screws for mounting the intake manifold
    • Bracket for exhaust gas temperature sensor
    • All required screw-in tools
    • fuel rails
    • 1x fuel pressure regulator housing with screw connection
    • Fitting for supply line incl. hollow screw and sealing rings
    • Fitting for return line
    • Closing plug for 2nd fuel rail

• • THE- HF Intake manifold set with fuel rails and two fuel pressure regulator housings:
    • Intake manifold
    • Gaskets for intake manifold
    • 4x cylinder head screws for mounting the intake manifold
    • Bracket for exhaust gas temperature sensor
    • All required screw-in tools
    • fuel rails
    • 2x fuel pressure regulator housing with fittings
    • 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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