Pure Turbos B58 Pure850 Cast Turbocharger Upgrade Brand New, No Core Deposit, No Exchange Fits BMW F-Series M140i, M240i, 340i, 440i

Pure Turbos B58 Pure850 Cast Housing Turbocharger - brand new unit, zero core charge, direct replacement for BMW F20 F21 F22 F23 F30 F31 F32 F33 F36 with first gen B58

Ready to turn your M140i, M240i, 340i or 440i into a serious performer without the hassle of core returns or rebuilds? This Pure Turbos Pure850 cast housing drop-in turbo is a brand new, plug and play uprated turbocharger for the original B58 engine in the F-series platform. Expect massive gains, lightning fast response and OE-level reliability from a fresh unit that bolts straight on.

We run these on our own builds and customer cars and the results are superb. If you are hunting for a B58 hybrid turbo, stage 3 B58 upgrade, F-series big turbo solution or a direct-fit performance turbo for your M140i or 340i, this Pure850 cast version is the proven choice for street, track day and fast road use.

Real-world performance

• Around 530 whp on 98 RON with the right supporting hardware and calibration
• 600 plus whp achievable with an upgraded high pressure fuel pump, E50 blend and meth injection
• Also seen 600 plus whp on E40 with appropriate hardware and mapping
• Rapid response, approximately 20 psi by 3200 rpm

Output depends on supporting mods, fuel quality and the tune. Professional mapping is essential.

Why this Pure850 cast unit is the smart choice

• Brand new turbocharger, no exchange and no surcharge to pay
• Billet compressor wheel for efficient flow and strong top end
• High flow turbine wheel for reduced back pressure and improved power
• CNC machined components for precise fitment
• High speed VSR balanced for durability at elevated boost
• Robust cast construction for long term reliability on hard driven B58 builds
• Direct bolt-on for F-series B58, keeps factory lines and mounting points

Vehicle compatibility - first generation B58, F-series

Direct fit on these petrol models:

• BMW 1 Series F20 F21 M140i
• BMW 2 Series F22 F23 M240i
• BMW 3 Series F30 F31 340i
• BMW 4 Series F32 F33 F36 440i

No core charge, no exchange

This is a fresh cast-housing unit supplied outright. Order it, install it, enjoy the power. No sending your standard turbo back, no waiting for a rebuild, no extra fees.

Fitting and calibration

For best results we recommend professional installation and tuning. MJ Modifications in Warwickshire offers in-house fitting and support. Request a quote at info@mjmodifications.co.uk.

Compatibility check

To make sure you receive the correct parts, we verify fitment before dispatch. For UK vehicles, provide your registration number. For international orders, include the last 7 digits of your VIN at checkout.

Part number

PUR-TUR-B58-013

Manufacturer

Pure Turbos

Warranty

1 year warranty

Search-friendly terms our customers use

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