aFe POWER Magnum FORCE Stage-2 Intake Airbox Cover for BMW N55 135i, 335i & X1 (E82/E88/E90/E92/E93/E84) – Part 54-31918-B – Fits aFe 52-31912
aFe POWER Magnum FORCE Stage-2 Intake Airbox Cover for BMW N55 135i, 335i & X1 (E82/E88/E90/E92/E93/E84) – Part 54-31918-B – Fits aFe 52-31912
aFe POWER Magnum FORCE Stage-2 Intake Airbox Cover for BMW N55 135i, 335i & X1 (E82/E88/E90/E92/E93/E84) – Part 54-31918-B – Fits aFe 52-31912
aFe POWER Magnum FORCE Stage-2 Intake Airbox Cover for BMW N55 135i, 335i & X1 (E82/E88/E90/E92/E93/E84) – Part 54-31918-B – Fits aFe 52-31912
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  • Load image into Gallery viewer, aFe POWER Magnum FORCE Stage-2 Intake Airbox Cover for BMW N55 135i, 335i & X1 (E82/E88/E90/E92/E93/E84) – Part 54-31918-B – Fits aFe 52-31912
  • Load image into Gallery viewer, aFe POWER Magnum FORCE Stage-2 Intake Airbox Cover for BMW N55 135i, 335i & X1 (E82/E88/E90/E92/E93/E84) – Part 54-31918-B – Fits aFe 52-31912
  • Load image into Gallery viewer, aFe POWER Magnum FORCE Stage-2 Intake Airbox Cover for BMW N55 135i, 335i & X1 (E82/E88/E90/E92/E93/E84) – Part 54-31918-B – Fits aFe 52-31912

aFe POWER Magnum FORCE Stage-2 Intake Airbox Cover for BMW N55 135i, 335i & X1 (E82/E88/E90/E92/E93/E84) – Part 54-31918-B – Fits aFe 52-31912

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aFe BMW Magnum FORCE Stage-2 Intake Cover for N55 (135i, 335i, X1) – Part No. 54-31918-B

Improve your BMW N55 engine bay with the genuine aFe POWER Magnum FORCE Stage-2 Intake Cover. Designed specifically to pair with the aFe Stage-2 intake system, this snap-on airbox cover helps reduce air intake noise while maintaining performance. Built from durable vacuum-formed ABS plastic and finished with a riveted aFe POWER emblem, it delivers a stealthy, OEM-plus look that suits daily drivers and track builds alike.

Keywords you might be searching for: aFe intake cover BMW 335i, BMW 135i intake cover N55, BMW X1 intake cover E84, aFe Magnum FORCE Stage 2 airbox cover, 54-31918-B, aFe 52-31912 cover, BMW E90 E92 E93 E82 E88 intake cover, N55 airbox lid, BMW N55 induction cover, BMW cold air intake cover, aFe intake noise reduction, performance intake cover UK.

Why choose this aFe intake cover?

  • Purpose-built for the aFe Magnum FORCE Stage-2 intake system to reduce induction noise without sacrificing flow or performance.
  • High-quality vacuum-formed ABS construction for factory-like fit, finish and durability.
  • Quick, tool-free snap-on install to the top of the lower half of the factory airbox using OEM mounting points.
  • Stealthy, aggressive engine bay aesthetic with the authentic riveted aFe POWER plate.
  • Trusted by enthusiasts: we’ve used this cover on our own N55 cars and customer vehicles, and feedback has been consistently positive for its clean look and quieter intake sound.

Vehicle compatibility

  • 2011–2013 BMW 135i (E82/E88) N55 L6 3.0L (t)
  • 2011 BMW 335i (E90) N55 L6 3.0L (t)
  • 2011–2013 BMW 335i (E92/E93) N55 L6 3.0L (t)
  • 2011 BMW 335i xDrive (E90) N55 L6 3.0L (t)
  • 2011–2013 BMW 335i xDrive (E92/E93) N55 L6 3.0L (t)
  • 2013–2015 BMW X1 (E84) N55 L6 3.0L (t)

Fitment note: This cover only fits with aFe’s Stage-2 Intake System (Part No. 52-31912).

Key specs

  • Product: aFe POWER Magnum FORCE Stage-2 Intake Cover
  • Manufacturer: aFe POWER
  • Part number: 54-31918-B
  • Material: Vacuum-formed ABS plastic
  • Finish: Stealth black with riveted aFe POWER plate

Installation

Direct snap-on fit to the top of the lower half of the factory airbox. No cutting or drilling required. If you would like professional fitting, we can help. Nforcd offers installation in Warwickshire. Request a fitting quote via Sales@nforcd.com.

Compatibility check

We run a compatibility check prior to dispatch. Provide your UK registration number or the last 7 digits of your VIN at checkout to ensure perfect fitment for your BMW 135i, 335i or X1 N55.

Warranty

One-year aFe warranty.

Search-friendly terms

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aFe BMW Magnum FORCE Stage-2 Intake Cover 54-31918-B for 135i 335i X1 N55