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The Pure Turbos BMW B58 Cast Pure 850 Turbo is a high-performance turbo upgrade designed to take F-Series BMWs with the B58 turbocharged inline-6 engine to the next level. Engineered for maximum power and efficiency, this turbo features a reinforced cast housing, enlarged high-flow compressor and turbine wheels, and precision balancing, ensuring optimized airflow and boost response for superior performance.

With the capability to support up to 720+ horsepower when paired with the right tuning and supporting modifications, the Cast Pure 850 Turbo delivers quicker spool, stronger mid-range torque, and relentless top-end power, making it the perfect choice for enthusiasts looking for serious street power, track performance, or drag strip dominance. Whether you’re aiming for record-setting acceleration or a more exhilarating daily driving experience, this direct bolt-on turbo upgrade offers easy installation, outstanding durability, and proven forced induction technology. Unlock the full potential of your BMW m140i, m240i, 340i or 440i with the Pure Turbos BMW B58 Cast Pure 850 Turbo and experience unmatched power and responsiveness.

KEY FEATURES:

  • Pure Turbos Billet Compressor Wheel
  • Larger and Stronger Turbine Wheel
  • Upgraded Bearing Housing
  • Hi-Flow Silicone Inlet Pipe Kit (Included)
  • VSR Balanced
  • NEW Aftermarket Housing
  • Engineered and proven to support 720whp+

APPLICATIONS

  • 2016-2019 BMW B58 F20 F21 BMW M140i
  • 2015-2019 BMW B58 F22 F23 M240i
  • 2015-2019 BMW B58 F30 F31 340i
  • 2015-2019 BMW B58 F32 F33 F36 440i

NOTES:

NO CORE REQUIRED

ADDITIONAL INFORMATION:

Brand

PREPREG is a common term for a reinforcing fabric such carbon which has been pre-impregnated with a resin system. This resin system (typically epoxy) already includes the proper curing agent. As a result, the prepreg is ready to be laid into the mold without the addition of any more resin. In order for the laminate to cure, an autoclave production process is used, a combination of high pressure and heat.

  • Maximum strength and performance characterictics. In a hand layup production process, it is difficult to achieve 50% fabric and 50% resin content.  Typical hand laminates, even when vacuum bagged, end up with a significant amount of excess resin. Excess resin increases brittleness and reduces overall strength properties. On the other hand, most prepregs contain around 35% resin. This is ideal for maximum cured properties and generally impossible to achieve in normal hand lamination.
  • Uniformity and repeatability. The prepreg is of uniform thickness and each part coming out of the mold may theoretically be the same. Vacuum bagging technology may have some errors in processing, but prepreg ensures production consistency.
  • Reduce curing time. After the thermal curing cycle, no need to wait for the standard 48 hours can be fully cured.
  • Aesthetics. Although prepreg processing still requires mold preparation and demoulding, prepreg processing eliminates air bubbles, makes it easier to obtain a smooth, glossy surface as well as eliminates any seaming lines.

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We offer free tracked shipping on all orders within mainland EU. Orders to remote areas such as Malta, Cyprus, and Iceland may incur a surcharge. Worldwide shipping is also available—please contact us for a quote.

Most orders dispatch within one business day (Monday to Friday). EU delivery takes 3–5 working days from dispatch, and tracking details will be provided via email once your order has shipped.

Please note that import taxes may apply outside the EU, and these are the responsibility of the buyer. Some items may ship directly from our suppliers and may have varying delivery times. If an item is out of stock, we will contact you to discuss the available options.

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RETURNS

Changed your mind? You can return unused, uninstalled items in original packaging within 30 days of delivery. Return shipping is the customer’s responsibility unless the item is faulty.

Custom, used, or built-to-order items are non-returnable.

Once we receive and inspect your return, refunds are typically processed within 10 business days.

If your item is damaged or incorrect, contact us within 48 hours with photos and order details.

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WARRANTY

All VA and VA Motorsports products come with a 1-year limited warranty covering manufacturing defects and fitment issues. For third-party items, warranty terms vary by brand—please check the product listing or contact us for details.

This warranty does not cover wear and tear, incorrect installation, cosmetic damage, labor, or third-party costs.

To start a claim, email us with your order number, issue description, and photos. If the claim is approved, we’ll offer a replacement, store credit, or a refund.

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Pure Turbos BMW B58 Cast Pure 850 Turbo F Series
Pure Turbos BMW B58 Cast Pure 850 Turbo F Series