BMW M47/M57 Intake Manifold Swirl Flap Delete Plug Set – 22mm

For BMW diesel enthusiasts looking to eliminate the risk of swirl flap failure, this CNC-machined aluminum plug set offers a robust solution. Designed to replace the factory swirl flaps in the intake manifold, these end caps help protect your engine without triggering a check engine light. Ideal for those seeking long-term reliability on classic M47 and M57 variants.

Fitment

• Engine: M47N / M47TU / M47TUD20 (110 kW / 148 HP / 330 Nm)
  • E46 320d / 318d (2001-2005)
  • E83 X3 2.0d (up to end of 2006)
• Engine: M57 / M57D25 (122 kW / 164 HP / 350 Nm)
  • E39 525d (2000-2003, automatic transmission only)
• Engine: M57 / M57D30 (184 HP / 135 kW / 181 HP / 390 Nm)
  • E39 530d (automatic transmission only)
  • E46 330d / 330xd (automatic transmission only)
• Engine: M57 / M57D30 (184 HP / 135 kW / 181 HP / 410 Nm)
  • E38 730d (automatic transmission only)
  • E53 X5 3.0d
• Engine: M57 / M57D30 (193 HP / 142 kW / 190 HP / 410 Nm)
  • E38 730d
  • E39 530d
• Note: 22mm end caps are generally for models up to 2004; exceptions may exist.

Material & Construction

• CNC machined from aluminum (PA6)

Technical Specifications

• Cap diameter: 22mm
• Hole spacing: 35mm
• Mounting hole diameter: 4.5mm

What’s Included

• Set of CNC-machined aluminum end caps for swirl flap delete

Installation Notes

• Designed to be installed in place of factory swirl flaps in the intake manifold. No check engine light will result from installation.

FAQ

• Will installing these plugs cause a check engine light?
  No, installing these end caps in place of the swirl flaps does not trigger a check engine light.
• How do I know if I need the 22mm plugs?
  Generally, BMW diesels manufactured up to 2004 use 22mm end caps, but there may be exceptions. Always confirm by measuring your original swirl flaps before ordering.
• Are these compatible with both manual and automatic transmissions?
  Some fitments are specific to automatic transmission models. Refer to the fitment list to verify compatibility with your vehicle.