Pure Turbos BMW B58 Pure800 Stage 2 Turbo – Cast Version – No Core Deposit – M140i, M240i, 340i, 440i
Looking for the ultimate BMW B58 turbo upgrade in the UK for your M140i, M240i, 340i or 440i? The Pure Turbos B58 Pure800 Stage 2 Cast is the proven big-power, fast-spooling hybrid turbocharger that keeps OEM-like fitment and reliability. This brand new cast version requires no core deposit and no exchange. You receive a complete, ready-to-install Pure800 turbocharger with a high-flow silicone intake, designed to bolt straight up to your factory oil and coolant lines and the OEM downpipe connection.
Engineered in-house by Pure Turbos and high-speed VSR balanced, the B58 Pure800 Stage 2 Cast upgrade delivers faster spool, stronger mid-range and more top-end power than the regular Pure800. It has been proven to support over 750 whp with the right supporting modifications, while maintaining daily drivability. As a specialist UK supplier, we have fitted and used these turbos and our customers have been consistently impressed by the response and power gains on the BMW B58 platform.
Why choose the Pure800 Stage 2 Cast for your BMW B58
- BMW B58 turbo upgrade for M140i, M240i, 340i and 440i, Gen 1 B58 F-Series
- No core deposit required, no exchange, brand new cast housing turbocharger
- Faster spool and improved top-end power compared to the regular Pure800
- Direct bolt-on hybrid turbo, plug and play with OEM oil and coolant lines and downpipe
- Supplied with a high-flow silicone intake for maximum airflow
- Proven to support over 750 whp with appropriate fuel, tuning and supporting mods
- Perfect for street, track and fast-road builds looking for big turbo power with OEM-style fitment
Real-world power figures
- 586 whp on 98 RON pump fuel
- High 500s to low 600s whp on 99 RON pump fuel with methanol, upgraded HPFP and full bolt-ons
- 630 whp on race gas or 98 RON pump fuel, limited by the fuel system
- 700 whp on E50 with methanol, upgraded HPFP and full bolt-ons
- 734 whp on E85 with Stage 2 HPFP and full bolt-ons at 30 to 32 psi
- 542 whp at 23 psi
Dyno example: 586 whp on pump fuel with approximately 3200 rpm spool. Results vary based on hardware, fuel quality, tuning and conditions.

Key features and construction
- Custom billet compressor wheel
- Custom turbine wheel
- CNC machined
- Cast turbocharger housing
- High-speed VSR balanced for reliability
What is included
- Complete Pure800 Stage 2 Cast turbocharger assembly
- High-flow silicone intake pipe
- Direct-fit connections for OEM oil lines, coolant lines and downpipe
Vehicle compatibility
Fits all BMW F-Series Gen 1 B58 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 deposit or exchange
This is the cast version. You receive a brand new turbocharger. No core charge, no sending in your stock turbo, no downtime.
Installation and tuning
Professional installation and proper ECU calibration are essential to achieve the quoted power gains. For fitting, we recommend booking with Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Compatibility check
We verify fitment before dispatch. Provide your UK registration or the last 7 digits of your VIN at checkout so we can confirm compatibility for your BMW B58 M140i, M240i, 340i or 440i.
Manufacturer and warranty
Manufactured by Pure Turbos. Supplied with a 1 year warranty.
Part number
PT029
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