Dorch S58 OEM Injector Upgrade (+30%) - Gen 2 B58 / Supra
Ships from the brand or distributor, usually in 3–7 business days
Make sure this fits your car
Fits: Gen 2 B58: Toyota GR Supra 3.0, BMW Z4 M40i, M240i (G42), M340i (G20), M440i (G22), 540i, 740i and X3/X4 M40i (2020+), 840i, X5/X6/X7 40i
- Free US shipping over $250
- 30-day returns on unused parts
- Fitment help before you buy
The S58 in the M2, M3 and M4 uses the highest-flow injector in Bosch's family for this engine. It drops into a Gen 2 B58 with the correct spray pattern and about 30% more fuel than the stock B58 injector. It's the budget injector upgrade to pair with a Dorch Gen 2 pump.
What you get
- Six genuine BMW S58 direct injectors.
Good to know
- Dorch says these, combined with its Gen 2 pump kit, support just over 700 whp on E50 with no other fuel system changes.
- You need a tune to run them correctly.
- Fits Gen 2 B58 cars: Toyota GR Supra 3.0, Z4 M40i, M240i (G42), M340i (G20), M440i (G22), 840i, X5/X6/X7 40i, and the 540i, 740i and X3/X4 M40i from the 2020 model year on.
Brand: Dorch Engineering · Part #: DE-S58INJ-PKG
Gen 2 B58: Toyota GR Supra 3.0, BMW Z4 M40i, M240i (G42), M340i (G20), M440i (G22), 540i, 740i and X3/X4 M40i (2020+), 840i, X5/X6/X7 40i
| Model | Chassis | Years | Engine | Fits |
|---|---|---|---|---|
| M140i | F20/F21 | 2016–2019 | Gen 1 B58 | |
| M240i | F22/F23 | 2016–2021 | Gen 1 B58 | |
| 340i | F30/F31/F34 | 2016–2019 | Gen 1 B58 | |
| 440i | F32/F33/F36 | 2017–2020 | Gen 1 B58 | |
| 540i | G30/G31 | 2017–2019 | Gen 1 B58 | |
| 740i | G11/G12 | 2016–2019 | Gen 1 B58 | |
| X3 M40i | G01 | 2018–2019 | Gen 1 B58 | |
| 640i GT | G32 | 2018–2019 | Gen 1 B58 | |
| M340i | G20/G21 | 2019+ | Gen 2 B58 (TU) | |
| M440i | G22/G23/G26 | 2021+ | Gen 2 B58 (TU) | |
| M240i | G42 | 2022+ | Gen 2 B58 (TU) | |
| Z4 M40i | G29 | 2019+ | Gen 2 B58 (TU) | |
| GR Supra 3.0 | A90/A91 | 2020+ | Gen 2 B58 (TU) | |
| 540i | G30/G31 | 2020–2023 | Gen 2 B58 (TU) | |
| 740i | G11/G12 | 2020–2022 | Gen 2 B58 (TU) | |
| X3 M40i | G01 | 2020+ | Gen 2 B58 (TU) | |
| X5 xDrive40i | G05 | 2019–2023 | Gen 2 B58 (TU) | |
| X6 xDrive40i | G06 | 2020–2023 | Gen 2 B58 (TU) | |
| X7 xDrive40i | G07 | 2019–2022 | Gen 2 B58 (TU) | |
| 840i | G14/G15/G16 | 2019+ | Gen 2 B58 (TU) |
Not sure? Email sales@b58racing.com with your VIN.
- Ships from the brand or distributor, usually in 3–7 business days.
- Free US shipping on orders over $250.
- Unused parts can be returned within 30 days. Some items are marked no-refund in their description.
Full details are on our shipping and returns page.
Pairs well with
Dorch DS3 High Pressure Fuel Pump Upgrade - Gen 2 B58 / Supra
Dorch Flex Fuel Ethanol Sensor (ECA) Kit - Gen 2 B58 / Supra
Dorch DS25 High Pressure Fuel Pump Upgrade - Gen 2 B58 / Supra
