Home » BMW N57N, N57X, N57Z Swirl Flap Delete Plug Kit – Intake Manifold Shaft Blank with Gaskets for 11618515685, 11617811909
BMW N57N, N57X, N57Z Swirl Flap Delete Plug Kit – Intake Manifold Shaft Blank with Gaskets for 11618515685, 11617811909 1
BMW N57N, N57X, N57Z Swirl Flap Delete Plug Kit – Intake Manifold Shaft Blank with Gaskets for 11618515685, 11617811909 2
BMW N57N, N57X, N57Z Swirl Flap Delete Plug Kit – Intake Manifold Shaft Blank with Gaskets for 11618515685, 11617811909 3
BMW N57N, N57X, N57Z Swirl Flap Delete Plug Kit – Intake Manifold Shaft Blank with Gaskets for 11618515685, 11617811909 1
BMW N57N, N57X, N57Z Swirl Flap Delete Plug Kit – Intake Manifold Shaft Blank with Gaskets for 11618515685, 11617811909 2
BMW N57N, N57X, N57Z Swirl Flap Delete Plug Kit – Intake Manifold Shaft Blank with Gaskets for 11618515685, 11617811909 3
SKU: KL11618515685

BMW N57N, N57X, N57Z Swirl Flap Delete Plug Kit – Intake Manifold Shaft Blank with Gaskets for 11618515685, 11617811909

In stock
Usually ships within 24 hours
Save 17%
In stock
$25.00
$25.00 $30.00

Quality Assurance

Friendly support

Hassle-free returns

The Ultimate Swirl Flap Delete for High-Performance BMW Diesel Engines

If you own a BMW with the N57N or the Triple-Turbo N57X engine, you know that performance is everything. However, the factory swirl flap system remains a weak link. Over time, the flap mechanism suffers from carbon buildup and mechanical wear, leading to air leaks, reduced boost pressure, and the risk of internal engine damage.

The Klifex Swirl Flap Shaft Plug is a precision-engineered solution designed to permanently seal the intake manifold after removing the failure-prone swirl flap assembly.

Why This Upgrade is Essential:

  • Engineered for High Boost: Specifically designed to withstand the extreme intake pressures of the N57X Triple-Turbo engines (M50d models).

  • Permanent Reliability: Eliminates the risk of flap failure and mechanical wear once and for all.

  • Perfect Seal: Comes complete with high-temperature, oil-resistant gaskets to ensure a 100% airtight fit in the manifold.

  • Optimal Airflow: Removing the flaps reduces turbulence in the intake tract, allowing for smoother airflow at high RPMs.

  • Heavy-Duty Construction: Manufactured from premium materials resistant to heat, vibration, and chemical exposure.

Compatibility Guide

This plug is compatible with intake manifolds: 11618515685 and 11617811909.

Fits the following BMW High-Performance Models:

  • 5 Series (F10/F11): M550dX (2010–2017)

  • 7 Series (F01/F02): 750dX, 750LdX (2011–2015)

  • X5 (E70/F15): X5 M50dX (2011–2018)

  • X6 (E71/F16): X6 M50dX (2011–2019)

Engine Codes: N57N, N57X, N57Z.

⚠️ ATTENTION: This kit is specifically for the N57N/X/Z series. It DOES NOT fit standard M57, N57 (early), or B57 engines. Please verify your manifold part number before ordering.

Read All
  • BMW

Orders ship within 1–2 business days.

Standard delivery:

  • USA: Some items ship from our US warehouse and arrive within 3 business days.
  • USA-EU: 10–21 business days
  • Worldwide: 14–30 business days

Shipping cost is shown at checkout.

Can I exchange or return an item?

Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights

To use this feature, please make sure that:

  • the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
  • the goods are fully completed and the integrity of the packaging is not violated
  • retained all labels and factory markings

High quality, less cost: Get parts as good as the original, but far cheaper.

Expert support: Our auto experts are ready to help you choose the right parts and give installation tips.

Fast shipping: We ship your order the same day, so you can get parts quickly.

Flexible options: You can choose your preferred payment and delivery methods.

Reviews