AIRTEC Motorsport Sealed Cold Air Intake Kit for BMW M140i M240i (B58) - Performance Induction/Closed Airbox Upgrade | High Flow Filter CAI | BMW 1 Series F20 F21 & 2 Series F22 F23 | B58 Intake Upgrade

AIRTEC Motorsport Sealed Intake System for BMW M140i and M240i B58

Give your turbocharged B58 the airflow it deserves with AIRTEC Motorsport’s sealed intake system. This UK developed upgrade replaces the restrictive factory assembly with a high flow, enclosed airbox that feeds your M140i or M240i cool, clean air for crisper response, stronger mid-range pull and a richer induction note under load. It looks factory fresh under the bonnet, yet delivers the performance and sound enthusiasts want on fast road and track days.

Why enthusiasts choose this AIRTEC intake

• Sealed airbox design helps keep heat soak down for consistent intake temperatures and reliable performance.
• High flow architecture improves breathing versus the standard air filter housing for more immediate throttle reaction.
• Refined induction tone with a purposeful turbo spool and whoosh, without being intrusive on a cruise.
• Neat, OEM style fitment that retains a clean engine bay appearance and uses factory style mounting points.
• Engineered and tested in the UK for the BMW B58 platform, proven for spirited driving and track work.

What you will notice

• Quicker pick up and a more eager feel through the revs.
• A deeper, more engaging intake sound that suits the B58 straight six character.
• Stable performance during repeated pulls thanks to the enclosed, heat managed layout.

Fitment

Compatible with BMW M140i and BMW M240i models equipped with the B58 engine. Ideal for owners seeking a direct replacement intake system that offers tangible improvements without compromising daily usability.

Our experience

We have installed this AIRTEC sealed intake on customer cars and our own builds at MJ Modifications. Feedback has been excellent, with owners praising the sharper response, quality finish and the tasteful induction sound that complements exhaust upgrades and future tuning plans.

Fitting and support

Professional fitting available at MJ Modifications in Warwickshire. For a quote or to book your installation, email info@mjmodifications.co.uk. We are happy to advise on compatibility and setup for your specific M140i or M240i.

Search friendly highlights

• M140i air filter upgrade and sealed airbox kit
• M240i performance intake system for B58 engines
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• B58 airbox upgrade, high flow intake, turbo breathing kit
• Direct fit intake for BMW B58, UK engineered performance filter
• Track day ready intake for M140i and M240i with enclosed design
• Plug-in replacement for factory air filter housing on B58 platform

Unlock better breathing, cooler charge air and a more characterful soundtrack with AIRTEC Motorsport’s sealed intake for the BMW M140i and M240i B58. Order from MJ Modifications with confidence and enjoy a quality UK developed upgrade that delivers from the first drive.