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BMW Bosch S58 Fuel Injector - G8X M2 M3 M4 & X3M / X4M - 13538671991
All new turbocharged BMW engines use a direct fuel injection system which directly injects fuel into the combustion chamber. This differs from a port injection system which injects fuel into the intake side of the engine through the intake manifold. Direct injection fuel systems operate at a significantly higher pressure than conventional port injection fuel systems. Due to the design, the engine relies heavily on a properly operating fuel system.
Solenoid-style direct injectors have proven to be reliable in the long run but they are not exempt from failures. Some of the most common issues with this style of injector are related to carbon buildup on the tip which can result in low-speed pre-ignition and atomization problems. In extreme cases, a leaking injector can cause cylinder wash or a hydrolock.
Includes compression seal, P/N 13537591006
Fuel Injector
A fuel injector is a critical component of a vehicle's fuel delivery system. It is responsible for delivering the precise amount of fuel into the engine's combustion chamber at the right time. Fuel injectors spray fuel in a fine mist, ensuring proper atomization and mixing with air for efficient combustion.
Fuel Injector Failure Symptoms
- Poor Engine Performance: A failing fuel injector can lead to reduced engine performance, resulting in a lack of power, rough acceleration, or difficulty maintaining speed
- Rough Idle: If one or more fuel injectors are clogged or malfunctioning, the engine may idle roughly, leading to vibrations and an uneven running condition
- Increased Fuel Consumption: A malfunctioning injector can lead to excessive fuel being injected into the engine, resulting in poor fuel economy and increased operating costs
- Engine Misfires: A faulty fuel injector can cause the engine to misfire, which may result in a noticeable loss of power, rough running, or even stalling. Misfires can also trigger the check engine light
OEM Fitment:
G87 (2024-) > M2 (2024+)
G80 (2021-) > M3 (2021-)
G82 / G83 (2021-) > M4 (2021-)
G82 / G83 (2021-) > M4 CSL
G82 / G83 (2021-) > M4 Competition RWD (2021-)
G82 / G83 (2021-) > M4 xDrive Competition (2021-)
F39 X2 (2018-2023) > X2 M35i (18-23)
F97 X3M (2020+) > X3M
F98 X4M (2020+) > X4M
(Also they Fit Gen2 B58 +30% Upgrade)
These are the OEM injectors for the S58 engine and the highest flowing injectors of this family from Bosch. In terms of mechanical fitment, they will drop into any B58 Gen2 engine while retaining the correct spray pattern and adding 30% MORE fueling! These injectors combined with our Gen2 HPFP kit are good for just over 700whp on E50 fuel with zero additional fuel system upgrades.
NOTE: You WILL need a tune to properly run these injectors.
Upgrade Kit Fitment:
A90/91 – Toyota Supra
G29 – Z4 M40i
G42/43 – M240i, M240xi
G20/21 – M340i, M340xi
G22/23/26 – M440i, M440xi
G30/31 – 540i, 540xi *
G32 – 640i, 640xi *
G11/12 – 740i, 740xi *
G15/16 – 840i, 840xi
G05 – X5 40i
G06 – X6 40i
G07 – X7 40i
G01 – X3 M40i *
G02 – X4 M40i *
* ONLY GEN2 B58 Equipped Model Years