BigBoost G35-Series Single Turbo Conversion Kit for BMW B58 (F20 F21 F22 F23 F30 F31 F32 F33 F36 G20 X3 M40i) & Toyota GR Supra A90 – Garrett G35-900/1050 – M140i M240i 340i 440i
BigBoost G35-Series Single Turbo Conversion Kit for BMW B58 (F20 F21 F22 F23 F30 F31 F32 F33 F36 G20 X3 M40i) & Toyota GR Supra A90 – Garrett G35-900/1050 – M140i M240i 340i 440i
BigBoost G35-Series Single Turbo Conversion Kit for BMW B58 (F20 F21 F22 F23 F30 F31 F32 F33 F36 G20 X3 M40i) & Toyota GR Supra A90 – Garrett G35-900/1050 – M140i M240i 340i 440i
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  • Load image into Gallery viewer, BigBoost G35-Series Single Turbo Conversion Kit for BMW B58 (F20 F21 F22 F23 F30 F31 F32 F33 F36 G20 X3 M40i) & Toyota GR Supra A90 – Garrett G35-900/1050 – M140i M240i 340i 440i
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BigBoost G35-Series Single Turbo Conversion Kit for BMW B58 (F20 F21 F22 F23 F30 F31 F32 F33 F36 G20 X3 M40i) & Toyota GR Supra A90 – Garrett G35-900/1050 – M140i M240i 340i 440i

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BigBoost G35-Series Turbo Kit for BMW B58 and Toyota GR Supra A90

Transform your BMW B58 or Toyota GR Supra A90 with the BigBoost G35-Series turbo kit. This is a serious BMW B58 turbo upgrade designed for enthusiasts who want a reliable, high-flow, single turbo conversion that delivers huge performance potential with OEM-level fit and finish. Choose between genuine Garrett G35-900 or Garrett G35-1050 turbochargers to match your build goals. Perfect for M140i, M240i, 340i, 440i, G20 B58, X3 M40i and A90 Supra owners chasing a top-tier turbocharger upgrade.

At Nforcd we have run this kit on our own B58 development car, and customer feedback has been outstanding. If you are searching for BMW B58 turbo kit, B58 single turbo, M140i big turbo, M240i turbo kit, 340i turbo upgrade, 440i turbo kit, G20 B58 turbo, GR Supra A90 turbo upgrade or BigBoost G35 turbo kit, this is the one to beat.

Why choose the BigBoost G35-Series for your B58

  • Genuine Garrett performance: select G35-900 or G35-1050 to suit your power target.
  • High-flow cast twin scroll manifold with external wastegate port and 40% larger runners than stock for exceptional response and top-end flow.
  • External boost control with Turbosmart Hypergate 45 for precise, stable boost management.
  • Comprehensive kit with premium lines, fittings and hardware engineered for durability and easy integration on the B58 platform.
  • Proven by Nforcd and trusted by our B58 customers for power, response and reliability.

What’s included

  • Genuine Garrett G35-900 or G35-1050 turbocharger
  • Cast twin scroll manifold with external wastegate port and 40% larger-than-stock runners
  • Turbosmart Hypergate 45 external wastegate
  • Aviation-grade stainless steel oil feed lines
  • Oil feed and return fittings for turbo
  • Oil feed fittings for engine
  • Oil drain adapter
  • Turbo to throttle body charge pipe
  • Aluminium 4” inlet pipe
  • Silicone couplers
  • Hose clamps
  • Turbo coolant inlet and outlet fittings
  • Engraved heat shield
  • VPE V-band clamp
  • OEM O-ring kit
  • Aeroquip coolant hose kit

Compatibility

Designed for vehicles equipped with the BMW B58 engine, including:

  • BMW 1 Series F20 F21 M140i and M140ix
  • BMW 2 Series F22 F23 M240i and M240ix
  • BMW 3 Series F30 F31 F34 340i and 340ix, plus G20 340i
  • BMW 4 Series F32 F33 F36 440i and 440ix
  • BMW X3 G01 M40i
  • Toyota GR Supra A90 3.0 B58

Popular searches: BMW B58 turbo kit UK, B58 single turbo conversion, M140i turbo upgrade, M240i turbocharger, 340i turbo kit, 440i turbo upgrade, G20 B58 turbo upgrade, Supra A90 big turbo, BigBoost G35-900, BigBoost G35-1050, Garrett G-Series turbo kit.

Important notes

  • The G35 turbo kit requires custom tuning via a known platform such as MHD or BM3. Your tuner will need to disable the factory electronic wastegate.
  • You need to order a boost controller. We recommend the GFB G-Force III, part number 3005.
  • Built to order. Please allow approximately 5 to 10 weeks for dispatch.

Fitting and tuning

Professional installation and calibration are strongly recommended. Nforcd offers in-house fitting and support in Warwickshire. To request a fitting or tuning quote, contact Sales@nforcd.com.

Part numbers

  • BIGBOOST-G35-900
  • BIGBOOST-G35-1050

Manufactured by

BigBoost