Eventuri BMW E46 M3 S54 CSL-Style Carbon Fibre Airbox Intake - Alpha-N MAFless Compatible, Manual/SMG | EVE-E46-ABX

Eventuri S54 Carbon Plenum Upgrade for BMW M3 E46

Status: This CSL-style carbon plenum from Eventuri is discontinued indefinitely. For drivers chasing the same addictive CSL induction tone and sharper pedal feel on the S54, we recommend the Eventuri E46 M3 carbon performance intake as the nearest alternative.

Created for the legendary straight-six E46 platform, this carbon fibre plenum gives that unmistakable CSL howl, enhanced throttle response and a premium motorsport aesthetic under the bonnet. Developed with high-end motorsport manufacturing partners using pre-preg carbon fibre, the construction and finish are first rate with precise fitment for the M3 E46.

At MJ Modifications we have installed Eventuri hardware on many E46 M3 builds and owner feedback is consistently excellent. Expect a crisper pedal, smoother delivery across the rev range and that spine-tingling intake resonance when the individual throttle bodies open up. Calm at idle and cruise, pure CSL character when you lean on it.

Key reasons enthusiasts choose this carbon plenum

• Iconic CSL induction note on the S54 straight-six
• Pre-preg carbon fibre layup with a premium, motorsport-grade look
• Optimised to run with Alpha N engine calibration for MAF delete setups
• Noticeably sharper throttle response and improved airflow characteristics
• Refined acoustics for road use yet exhilarating at wide-open throttle
• Direct fit for BMW M3 E46 with both manual gearbox and SMG II transmission

Alpha N remap guidance for MAF delete users

This plenum is designed to be used with an Alpha N strategy where the mass air sensor is removed and the ECU is recalibrated to suit increased flow. Typical map areas adjusted include:

• Wide-open throttle fuelling targets
• WOT ignition advance targets
• Part-load ignition optimisation
• Minimum spark tables
• Torque model refinement
• Vmax limiter removal from the factory 250 km/h setting
• Dyno rpm limiter deactivation from the stock 6300 rpm test threshold
• Sport button memory enable
• Normal and Sport throttle angle maps smoothed for drivability
• VANOS inlet and exhaust optimisation
• Throttle plate target to achieve 100 percent opening

Vehicle compatibility

BMW M3 E46 with S54 engine. Fits both manual and SMG models.

Additional parts required sold separately

• IAT Sensor - 13621725324

Manual:

• Brake Air Valve - 11617833647
• Breather Hose - 11157833649

SMG:

• SMG Reservoir Bottle - 21532282549
• SMG Reservoir Bottle Bracket - 41147896136

Professional fitting and support

For installation and Alpha N setup, book with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and guidance on parts, coding and calibration for your E46 M3 S54.

Fitment check

We verify compatibility before dispatch. Add your UK registration or the last 7 digits of your VIN at checkout and we will confirm fitment for your E46 M3.

Part number

EVE-E46-ABX

Manufacturer and warranty

Manufactured by Eventuri. Supplied with a one year Eventuri warranty.

Search-friendly summary

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