MMR Performance Silicone Intake Hose for BMW B58 M140i, M240i, 340i, 440i
Upgrade your BMW B58 with the MMR Performance Silicone Intake Hose, the proven intake hose upgrade for F-series BMW M140i, M240i, 340i and 440i. This high-flow silicone turbo intake hose replaces the restrictive factory plastic bellows pipe between the airbox and turbo inlet to smooth airflow, reduce turbulence and enhance induction noise. It is a simple, worthwhile performance modification that supports power gains and improves throttle response while sharpening the sound of your B58.
Designed specifically for B58-powered BMW M140i, M240i, 340i and 440i, this intake hose delivers a smoother, larger diameter airflow path for the turbo. It looks the part too, with a deep gloss black finish that tidies the engine bay. The result is a BMW B58 intake hose that performs and presents, perfect for daily-driven cars and performance builds alike.
Why choose this BMW B58 silicone intake hose
- Direct replacement for the OEM plastic bellows hose between airbox and turbo inlet.
- Large diameter, smooth internal bore with stepped inlet and outlet for a constant bore and maximum airflow.
- High quality multi-ply silicone construction with reinforced sections to prevent deformation under load or heat.
- Engine-safe compliance built in, allowing the engine to move under load without stressing the intake system.
- Enhanced induction noise and a smarter engine bay in deep gloss black.
- Fast, easy DIY install in around 10 minutes using basic hand tools. Fully reversible if required.
Best results with OEM or aftermarket intakes
This MMR silicone intake hose performs brilliantly with the standard turbo elbow and airbox, especially when paired with the MMR High-Flow Filter. It really shines when combined with the MMR Air Intake or other quality aftermarket intake systems, unlocking the airflow your B58 turbo needs. Put simply, you will leave performance on the table if you upgrade the intake without also replacing the restrictive factory bellows hose.
Real-world results from Nforcd
We fit and run this MMR Performance intake hose on our own B58 builds and customer cars. Feedback has been consistently positive, with owners reporting crisper throttle response, smoother turbo spool and a more purposeful induction sound. It is a small change that makes a noticeable difference.
Fitment
BMW B58 F-series models:
- BMW M140i
- BMW M240i
- BMW 340i
- BMW 440i
Fitting and support
Professional fitting is available at Nforcd in Warwickshire. To request a quotation, contact Sales@nforcd.com.
Please note: Hose clips are not included, original ones can be reused.
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