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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.
- 1.5" Schedule 40 Runners – Larger diameter for reduced exhaust backpressure, maximizing power without increasing turbo lag.
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:
- PTE Turbo if selected
- 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
2022-2024 G42 M240i RWD
2022-2024 G42 M240i xDrive
3 Series
2020-2024 G20 M340i RWD
2020-2024 G20 M340i xDrive