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B58 Twin-Turbo Upgrade Kit for BMW M240i and M340i

Original price was: $4,299.99.Current price is: $92.46.

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Description

Email our sales team for Lead Time. Turbo NOT included.

2020–2024 BMW M340i / M240i B58 Gen 2 Top Mount Turbo Kit

Upgrade your B58 Gen 2-powered M340i or M240i with this top-mount turbo kit, designed for high-horsepower builds and maximum efficiency. Now available in two different runner sizes to match your performance goals:

  • 1.25″ Schedule 40 Runners – Industry standard, proven to support over 1200 HP, featuring a high-flow investment cast collector for optimal performance.

Key Features

  • Premium tubular stainless manifold (1.90” OD runners)
  • PTE turbo compatibility only (designed for precise fitment—other turbos will not fit)
  • Dual Turbosmart 45mm wastegates for optimal boost control
  • 3.5” stainless downpipe for improved exhaust flow
  • High-quality stainless steel components, including oil and coolant lines, charge piping, and v-band clamps
  • Polished exhaust components (ceramic coating available as an option)
  • Heat shield and wastegate dump tubes included

Note: This kit is designed exclusively for PTE turbos. Adapting it for other turbos may result in poor fitment and performance issues.

Kit Includes: 

  • Turbosmart 45mm wastegates (2)
  • Tubular stainless manifold (1.90” OD runners)
  • 3.5” stainless downpipe
  • Wastegate dump tubes (2)
  • Charge pipe from turbo to TB (2)
  • Silicone couplers and clamps
  • Stainless oil drain line kit
  • Stainless oil feed line kit
  • Stainless coolant bypass line kit
  • T4 gasket
  • Turbo studs and nuts
  • Exhaust v-band clamp
  • 4” turbo screen
  • Heat shield
  • 1/4” nylon tubing and fittings (wastegate routing)
  • Valve cover vent filter 
  • 3/4” boost caps (2)

BMW B58 Gen 2 G-Chassis Applications:

2 Series

2022+     G42     M240i RWD
2022+     G42     M240i xDrive

3 Series

2020+     G20     M340i RWD
2020+     G20     M340i xDrive

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Additional information

Runner Size

1.25 Schedule 40 (1.66")

Turbo

Without Turbo

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