MMR Performance Cold Air Intake & Induction Kit with Heat Shield for BMW M140i & M240i (B58) - High-Flow Dual-Entry Cone Filter Upgrade

MMR Intake System with Heat Shield for BMW M140i and M240i B58

Give your B58-powered BMW the airflow it craves. This MMR intake system replaces the restrictive factory airbox on the M140i and M240i with a free‑breathing, dual‑entry cone filter and precision bellmouth for smoother, higher volume airflow. Expect sharper pedal response, a cleaner turbo spool sound and a purposeful induction note, all while maintaining cool charge temps thanks to the included heat shield.

Engineered specifically for the BMW B58 in the M140i and M240i, the system retains the OEM cold feed path while shielding the filter from engine bay heat. Vibration‑isolated CNC billet mounts keep everything secure with reduced NVH. The result is an OEM‑plus upgrade that looks premium under the bonnet and performs brilliantly on stock or remapped cars. We run this setup on our own builds and customer vehicles, and the feedback is consistently positive for response, tone and quality.

Highlights

• Purpose‑designed intake for B58 in BMW M140i and M240i
• Two‑entry cotton gauze performance cone for maximum breathing
• Aluminium bellmouth for smooth, low‑turbulence flow to the turbo
• Heat shield integrates with the factory front air feed to help keep intake temps stable
• Rubber‑isolated billet aluminium brackets to minimise vibration and noise
• Carbon fibre support rods and quality billet fixings for a premium engine bay finish
• Durable anodised blue hardware with laser‑etched branding
• Direct replacement, reversible, no cutting required
• Enhances turbo spool, induction tone and throttle response

Why enthusiasts choose it

If you are looking for an M140i or M240i breathing upgrade that delivers a more responsive feel and addictive sound without compromising everyday drivability, this MMR system hits the sweet spot. It is a proven, plug‑and‑play intake that pairs perfectly with Stage 1 or Stage 2 software and other bolt‑ons, while still being superb on a standard car.

Fitment

BMW M140i and BMW M240i with the B58 3.0 turbo petrol engine. Suitable for F20 F21 M140i and F22 F23 M240i platforms.

Fitting and support

Installation is straightforward with basic tools and is fully reversible. Prefer a professional install or a same‑day while‑you‑wait service? Book with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Popular search terms

BMW M140i air intake system, M240i performance intake, B58 intake upgrade, BMW 1 Series M140i F20 F21 induction upgrade, BMW 2 Series M240i F22 F23 intake kit, open cone intake with heat shield, B58 turbo spool sound, BMW M140i engine bay dress up, performance cone filter kit, free‑flow intake M140i, M240i ram air style intake, B58 tuning hardware, BMW M140i whoosh sound, airbox delete M140i, M240i induction sound upgrade, BMW B58 mods.