DAW UltraFlow Turbocharger for BMW B58 550750 HP Fast-Spool Turbo Upgrade | Fits M140i/M240i/340i/440i/M340i/Supra/Z4 M40i | Includes Osprey Inlet | Made in USA | UK Stock

DAW UltraFlow - Uprated Performance Turbo for BMW 3.0 B58 - UK Stock

Unlock serious real-world pace with the DAW UltraFlow, a direct-fit uprated unit engineered for the BMW 3.0 straight six B58. Built in the USA and refined through continuous development, this latest evolution delivers rapid spool-up, hard-hitting midrange and relentless pull to the redline. Ideal for fast-road and mixed-use builds targeting around 550 to 750 bhp with the correct hardware and calibration, now available from UK inventory.

• Proven pace - customer cars have run 9-second quarter miles and sub 5-second 100-200 km/h Dragy times
• Street-friendly response - quick boost onset for effortless overtakes and punchy torque
• Serious headroom - supports 550 to 750 bhp with suitable fueling, cooling and ECU mapping
• Precision USA manufacture - quality, consistency and reliability
• High-flow Osprey inlet with coupler included - compatible with factory airbox setups
• Direct fitment for B58 platforms - a smart bolt-on solution for road, strip and track-day builds

We run this hardware on our own projects and across customer cars. Feedback has been outstanding - lightning-quick response, strong and repeatable power delivery and rock-solid dependability for daily driving and weekend blasts alike.

Why choose UltraFlow for your B58 build

• Fast-spooling performance that feels OEM-plus but pulls like a much larger unit
• Massive potential with the right supporting parts - downpipe, intercooler, intake, fueling and a proper remap
• Designed for enthusiasts who want a direct replacement turbo that delivers real gains without compromising drivability
• Includes the Osprey high-flow inlet for maximum airflow and seamless integration

Vehicle applications

• BMW M140i, M240i
• BMW 340i, 440i
• BMW M340i
• Toyota GR Supra 3.0
• BMW Z4 M40i

Note - variations exist across B58 revisions and model years. If you are unsure, contact us for guidance on compatibility and supporting modifications.

What you get

• DAW UltraFlow uprated turbo unit
• Osprey high-flow inlet and coupler to suit stock airbox arrangements

Recommended supporting mods

• ECU calibration - custom remap or tune for your fuel and hardware
• High-flow downpipe and intercooler
• Intake system and suitable fueling upgrades where required
• Quality spark plugs and fresh maintenance items

Fitting and support

Professional installation and calibration are strongly advised to achieve optimal results. For expert fitting, book with MJ Modifications in Warwickshire - request a tailored quote via info@mjmodifications.co.uk.

In stock in the UK

Available from UK inventory for enthusiasts who want a no-nonsense, high-performance upgrade with local support.

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