BMW 8671991 Fuel Injector Set G87 S58 3.0L

( Manufacturer Part Number: 8671991 ), ( Type: Fuel Injector ), ( Fuel Type: Gasoline ), ( Item Width: 7.000 ), ( Item Length: 13.000 )

Review BMW G87 Coupe S58 3.0l Fuel Injector Set Of Oem fits M2 2023–2025

The **BMW 8671991 2023-2025 G87 M2 Competition / S58 3.0L Twin-Turbocharged Fuel Injector Set** represents the pinnacle of precision engineering designed exclusively for BMW s high-performance twin-turbocharged inline-six engine architecture. This meticulously crafted assembly is engineered to deliver optimal fuel delivery, ensuring peak combustion efficiency, throttle response, and overall engine performance across the entire powerband from low-end torque to high-revving redline. Each injector in this set is a high-flow, direct-injection component, featuring advanced internal design elements such as precision-machined nozzles, optimized spray patterns, and durable ceramic or stainless-steel internals to withstand the extreme pressures and temperatures inherent in the S58 s aggressive forced-induction setup. The **8671991** designation corresponds to BMW s OEM-grade or high-quality aftermarket alternatives that match or exceed factory specifications, guaranteeing seamless integration with the G87 s fuel management system, including the Bosch or Siemens injectors paired with the engine s high-pressure fuel pump and rail system. Whether installed in a **M2 Competition** or a naturally aspirated S58-based model, this injector set is engineered to enhance fuel atomization, reduce carbon buildup, and maintain consistent performance under heavy loads, making it an essential upgrade for enthusiasts seeking to maximize power output, reliability, and longevity. Built to meet or exceed BMW s stringent quality standards, these injectors are designed for both stock and modified applications, ensuring compatibility with performance chips, turbo upgrades, or fuel system enhancements without compromising on durability or precision.

### **Pros and Cons of Buying a BMW 8671991 (2023 2025 G87 M2 S58 3.0L Fuel Injector Set)**

1. **Performance Enhancement** A high-quality fuel injector set can improve fuel atomization, leading to better engine efficiency, smoother power delivery, and reduced carbon buildup on intake valves. This is particularly beneficial for high-performance engines like the S58 twin-turbo 3.0L, which relies on precise fuel delivery for optimal power output.

2. **Preventative Maintenance** Fuel injectors degrade over time due to carbon deposits, fuel contaminants, or extended use. Replacing them as part of regular maintenance can prevent costly engine issues like misfires, poor fuel economy, or even long-term damage to the fuel system.

3. **Compatibility with Aftermarket Mods** If you plan to modify your M2 Competition (G87) with tuning (e.g., forced induction, ECU remaps), fresh injectors ensure the engine can handle increased fuel demand without running rich or causing injector failure.

4. **Warranty and Reliability** Purchasing from a reputable brand (e.g., Bosch, Delphi, or aftermarket specialists like **Fuel Injector Specialists, Injector Dynamics, or M-Sport Performance**) ensures OEM-level or better quality, reducing the risk of premature failure.

5. **Cost-Effective Long-Term Solution** While the upfront cost is higher than basic maintenance, replacing injectors proactively can save money by avoiding more severe engine repairs (e.g., carbon buildup cleaning, turbocharger damage, or catalytic converter failure).

6. **Improved Driving Experience** Clean injectors contribute to a more responsive throttle, better cold starts, and reduced engine knocking, especially in turbocharged engines where fuel delivery precision is critical.

7. **OEM or Upgraded Options** You can choose between **OEM replacements** (BMW part number 8671991) or **upgraded injectors** (e.g., **Bosch 0 220 150 003** or **Delphi DF2400**) for better flow rates if you plan to increase power.

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1. **High Upfront Cost** A full set of fuel injectors for the S58 engine can range from **$800 $2,500 **, depending on brand and whether you opt for OEM or upgraded units. This is a significant investment compared to routine services like oil changes or spark plugs.

2. **Labor Intensive Installation** Replacing injectors requires disassembling the fuel rail, removing the engine cover, and potentially recalibrating the ECU. If not done professionally, there s a risk of air in the fuel system, improper sealing, or electrical issues.

3. **Potential for Counterfeit Parts** Buying from untrusted sellers (e.g., eBay without verification or unknown online marketplaces) can result in **fake or low-quality injectors**, leading to premature failure and voiding warranties.

4. **Mixed Benefits Without Tuning** If you don t plan to modify the engine (e.g., no boost increase, no ECU flash), the performance gains from new injectors may be minimal. The real benefit comes when paired with **tuning or higher fuel flow demands**.

5. **Risk of Overkill for Stock Engines** The stock S58 injectors (depending on the exact year) may already be adequate for stock power levels. Upgrading too early without modifications might not provide noticeable benefits.

6. **Compatibility Concerns** Ensure the injectors match the **flow rate** of your engine s requirements. For example, stock S58 injectors typically flow around **600 700 cc/min per injector**, but aftermarket upgrades (e.g., **800 cc/min**) may require ECU tuning to avoid fueling issues.

7. **Warranty Void Risk** If you re under warranty, BMW may not cover injector replacements unless they fail due to a manufacturing defect. Some aftermarket injectors may void warranty coverage if installed improperly.

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- Plan to **modify the engine** (tuning, forced induction, or aggressive driving).

- Want to **prevent future fuel system issues** (carbon buildup, misfires, poor efficiency).

- Are experiencing **symptoms of failing injectors** (rough idle, hesitation, check engine lights).

However, if your engine is **stock and well-maintained**, the benefits may not justify the cost. In that case, **regular fuel system cleaning (e.g., **Meguiar s G10, **Liqui Moly Jectron**) or carbon cleaning** could be a more cost-effective alternative.

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- **Upgrade to high-flow injectors** (e.g., **Bosch 0 220 150 003** or **Delphi DF2400**) to support increased power.

- **Pair with ECU tuning** (e.g., **MHD, JB4, or custom maps**) to optimize fuel delivery.

- **Install from a trusted source** (e.g., **M-Sport Performance, Injector Dynamics, or a BMW specialist**).

- **Prioritize fuel system cleaning** (e.g., **carbon removal, fuel injector cleaner**) before replacing injectors.

- **Monitor for symptoms** (hesitation, poor MPG, rough idle) before committing to a full replacement.

- **Use OEM or premium aftermarket injectors** (avoid no-name brands).

- **Have a professional install** if you lack experience with fuel rail work.

- **Consider a fuel pressure test** before and after installation to ensure proper function.

- **OEM injectors (BMW part 8671991)** are reliable but expensive ( $1,200 $1,800 for a set).

- **Aftermarket upgrades** (e.g., **Bosch or Delphi**) offer better flow rates for less ( $600 $1,200).

- **DIY vs. Shop:** Labor costs ( $300 $600) can add up, so weigh whether you re comfortable with the installation.

For **high-mileage or modified S58 engines**, replacing injectors is a **proactive and cost-effective decision**. For **stock or low-mileage cars**, focus on **maintenance and cleaning** first. Always **verify part authenticity** and **install with care** to avoid complications.

Details:

SELLING:2023 2024 2025 BMW G87 M2 COUPE S58 3.0L FUEL INJECTOR SET OF 6 OEM 8671991 condition: PLEASE REVIEW ALL THE PICTURES CAREFULLY TO SEE EXACT CONDITION ITEM. ROUGHLY 19K MILES ON SET!!LOT #144 - 2023 BMW G87 M2 COUPE S58 3.0L RWD 8 SPEED AUTOMATIC TORONTO RED PAINT COLOR. Item Brand: Bmw.

part #: 8671991 prices

• $389.95-$595.95

specifications carfuelinjector:

• for models: M2
• for makes: Bmw
• for years: 2023-2025
• mpn: 8671991
• type: Fuel Injector
• fuel type: Gasoline
• item width: 7.000
• item length: 13.000

shipping carfuelinjector:

• type: Fixed
• cost: $0.00
• carrier: FedEx, UPS
• class: Economy, Expedited
• transit: 3-7 Days
• service: FedEx Ground Economy, UPS 2nd Day Air

general carfuelinjector:

• condition: Used
• Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors

offer carfuelinjector:

• started: May 6, 2026
• quantity: 1
• options: Ship-to-home
• sold: 0
• availability: In Stock

seller carfuelinjector:

• city: Cass City, Michigan
• # reviews: 349607
• rating: 99.8%

payments carfuelinjector:

• credit card: Diners-club
• other
• wallet: Paypal

returns carfuelinjector:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

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