Agency Power BMW B58 Cold Air Intake / Induction Kit with Heat Shield - M140i M240i 340i 440i (F20 F21 F22 F23 F30 F31 F32 F33) - Open Cone Performance Air Filter CAI 3.0 Turbo

Agency Power Ram-Fed Induction System for BMW B58 - M140i, M240i, 340i, 440i

Unlock sharper response and addictive turbo acoustics from your B58-powered BMW with this Agency Power ram air induction system. Ditching the restrictive factory airbox gives your six-cylinder turbo the fresh air it craves, delivering crisper pedal feel, smoother airflow and that satisfying spool and whoosh that enthusiasts want from a proper upgrade.

We have installed this kit on our own builds and many customer cars. The feedback is the same every time - great fit, quality materials, purposeful sound and a noticeable improvement in how the car picks up. It is a superb upgrade for daily use and spirited driving alike.

Key benefits

• Direct bolt-on induction kit for F-series B58 models - M140i, M240i, 340i, 440i
• High-flow cone filter with end-cap inlet promotes efficient, cool air feed
• Aluminium intake pipe with CNC machined 6061 MAP sensor boss, TIG welded for precise placement and factory-correct readings
• Precision-cut aluminium heat barrier with rubber edging to seal against the bonnet and help reduce hot engine bay ingestion
• Durable matte black powder coat for an OEM-plus appearance, with blue filter element
• Enhanced turbo spool and diverter valve acoustics for that signature B58 character
• Genuine Agency Power hardware and finish quality

What you get in the box

• Aluminium intake tube with CNC machined MAP sensor mount
• Aluminium heat shield with mounting tabs and rubber trim
• High-flow performance air filter with end-cap inlet

Vehicle applications

• BMW 1 Series: F20 F21 M140i, 2016+
• BMW 2 Series: F22 F23 M240i, 2016+
• BMW 3 Series: F30 F31 340i, 2016+
• BMW 4 Series: F32 F33 440i, 2016+

Note: Designed on the M240i chassis. The heat shield may require minor modification on 340i and 440i models.

Real-world gains you can feel

• Quicker throttle response from your 3.0 turbo straight-six
• Smoother, less restricted intake tract compared to the stock airbox
• Engaging induction tone that complements the B58
• Clean, factory-like presentation with robust, long-lasting finishes

Part number

F-B58-I-AP

Compatibility check

We verify fitment before dispatch. Add your UK registration or the last 7 of your VIN at checkout so we can confirm this kit suits your car.

Installation

A straightforward swap with basic hand tools. Typical steps:

1. Remove the factory airbox and filter element
2. Position and secure the heat shield
3. Fit the aluminium intake tube and plug in the MAP sensor
4. Tighten all clamps and install the cone filter

Prefer professional fitting? Book in with MJ Modifications, Warwickshire. Email info@mjmodifications.co.uk for a quote.

Why enthusiasts choose this setup

It looks right, sounds right and fits right. The heat-shielded, ram-fed design feeds cooler air to the turbo, the TIG-welded pipework positions the sensor exactly where it should be, and the overall finish sits neatly in the bay. Ideal alongside maps and supporting hardware, this intake is a popular choice for owners seeking a responsive, great-sounding B58 without compromise.

Brand

Agency Power

Media

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