034Motorsport X34 Carbon Fibre/Fiber Cold Air Intake System & Induction Kit for BMW B58 3.0L 3.0T – F2X/F3X M140i M240i 340i 440i (F20 F21 F22 F23 F30 F31 F32 F33 F36) Performance Airbox Upgrade

Carbon fibre induction upgrade for BMW F2X and F3X B58 3.0 litre

Unlock extra performance and sharper response from your turbocharged straight six with this X34 carbon fibre induction kit. Designed as a premium bolt-on upgrade for the BMW B58 platform, it delivers increased airflow, a crisper throttle, addictive turbo spool sounds and a stunning OEM plus engine bay finish. If you are chasing reliable flow for stock or remapped setups, this is the high quality intake you want on your B58.

Why enthusiasts choose this intake

• High flow carbon fibre air box with a cold air feed that uses the factory front ducting for cool, consistent intake temps
• Large conical performance filter with double layer cotton media capable of capturing particles down to 5 microns while flowing freely
• Machined aluminium bellmouth velocity stack for smooth, high speed airflow into the turbo
• CFD optimised filter tube engineered for minimal turbulence and maximum velocity
• Multi ply silicone intake hose replaces the restrictive corrugated plastic pipe for a straighter, smoother path
• Cleverly braced filter support to prevent movement and rubbing under engine load
• Partially enclosed design and heat shielding to help limit heat soak while maintaining excellent filter breathing space
• Direct fit, no cutting, works perfectly with standard calibration or Stage 1 and Stage 2 B58 tuning
• Looks as good as it performs, elevating the appearance of your engine bay with motorsport grade carbon fibre

Engineered to flow, tested to fit

Multiple iterations were modelled, prototyped and validated to ensure measurable improvements in airflow and real world performance. The housing retains the factory fresh air channel and integrates a heat barrier, while the 3.5 inch inlet conical filter feeds a precision bellmouth and a CFD tuned tube to the turbo inlet. The result is excellent filtration with minimal restriction and a noticeable uptick in response and sound, without compromise to everyday drivability.

What you get

• Carbon fibre air box with integrated heat shielding and cold air feed
• High flow, serviceable conical filter with enlarged surface area
• Machined velocity stack for smooth entry to the intake tract
• CFD optimised intake tube
• Reinforced silicone hose to replace the factory accordion pipe
• Filter support bracket and required fittings for an easy installation

Real results, real feedback

We run this intake on our own B58 builds and customer cars. The consensus is clear, stronger induction noise, quicker spool, and a cleaner, more premium look under the bonnet. It is a proper performance intake that balances flow, filtration and fitment the right way.

Compatible applications and popular search terms

For BMW F2X and F3X B58 3.0 litre models including M140i, M240i, 340i and 440i. Common searches include BMW B58 induction kit, carbon fibre intake kit, turbo intake pipe, air induction system, cold air feed, performance airbox, M140i intake upgrade, M240i air intake, 340i induction kit, 440i performance intake, F20 F21 F22 F23 F30 F31 F32 F33 F36 intake.

Professional fitting

Want it installed perfectly first time We offer expert fitting at MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a tailored quote and booking.