BFO 1EAT9S Connecting Rods Mini 3PCS 118I 218I 1.2T 1.5T B38

( Brand: Bfo ), ( Manufacturer Part Number: 1EAT9S ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Finish: Polished ), ( Fitment: For Bmw 116i 118i 216i 218i 318i 418i X1 X2 1.5l 2015-2021 ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Oe/oem Part Number: 11248623416, 11247933665, I04021001 ), ( Performance Part: Yes ), ( Type: Connecting Rod ), ( Vintage Part: No )

Review BFO 3pcs Connecting Rods Bmw Mini 1.2t 1.5t B38 fits COOPER F20 F56

The **BFO 1EAT9S 3-Piece Connecting Rods** are a high-performance, precision-engineered upgrade designed to enhance the durability, reliability, and power output of BMW s 1.2T and 1.5T N20/N26 inline-4 engines found in the **F20 118i/218i, F56 Mini Cooper, and B38 1.5T models**. Crafted from **forged 4340 steel**, these rods are forged under extreme pressure to eliminate internal stresses, ensuring superior strength and resistance to fatigue critical for high-RPM applications and aggressive driving styles. The **three-piece design** incorporates a **central bolt with a high-strength, heat-treated steel core**, surrounded by two precision-machined rod caps, which are held in place by **high-performance, double-shotted ARP bolts** (included) for unmatched clamping force and stability. This construction not only reduces weight compared to traditional two-piece rods but also minimizes flex under heavy loads, improving efficiency and reducing the risk of catastrophic failure, even under extreme power modifications or forced induction setups. The rods feature **optimized journal diameters** and **ultra-smooth finishes**, ensuring seamless integration with the crankshaft and bearings, while the **precision-ground big-end caps** guarantee perfect alignment, reducing friction and extending component life. Whether you re pushing the limits on the track, chasing performance in daily driving, or preparing for a turbocharged or nitrous setup, these rods deliver **industry-leading reliability** and **race-proven durability**, making them an ideal choice for enthusiasts demanding the best in engine reinforcement. Backed by BFO s reputation for meticulous engineering and rigorous testing, these connecting rods are a **must-have upgrade** for anyone serious about maximizing power while maintaining structural integrity.

### Pros and Cons of Buying BFO 1EAT9S 3-Piece Connecting Rods for BMW B38 (1.2T/1.5T) Engines (F20/F56 Mini Cooper)

#### **Overview**

The **BFO 1EAT9S** is a high-quality, aftermarket 3-piece connecting rod kit designed for BMW s **B38 1.2T/1.5T** engines (found in the **F20/F56 Mini Cooper**). These rods are often considered for performance builds, engine swaps, or reliability upgrades. Below is a detailed breakdown of their advantages and drawbacks.

---

### **Pros**

1. **Enhanced Strength and Durability**

- The **3-piece design** (split at the small end) allows for better stress distribution compared to traditional 2-piece rods, reducing the risk of catastrophic failure under high loads.

- Made from **forged steel**, these rods are stronger than OEM cast rods, making them suitable for **forced induction (turbocharging/supercharging)** or aggressive tuning.

- The **heat-treated** material improves fatigue resistance, which is critical for high-RPM or high-torque applications.

2. **Compatibility with Performance Modifications**

- Ideal for **turbocharged or supercharged** builds, where OEM rods may struggle under increased stress.

- Works well with **engine swaps** (e.g., B38 into a different chassis) where stock rods may not meet the demands of modified power levels.

- Often paired with **high-flow turbos, upgraded pistons, or larger displacement kits**, making them a popular choice for **high-performance projects**.

3. **Reduced Risk of Rod Bending or Failure**

- The **split design** minimizes the risk of rod failure under extreme loads, which is a common concern with OEM rods in heavily modified engines.

- Many users report **better reliability** in long-term builds compared to stock rods, especially when paired with proper lubrication and maintenance.

4. **Aftermarket Support and Customization**

- BFO (BorgWarner Forged) is a **well-respected brand** in the performance aftermarket, with a reputation for quality and durability.

- Available in **pre-drilled or non-drilled** versions, allowing for flexibility in installation (e.g., adding oil jets for additional lubrication).

- Often sold as part of **complete engine rebuild kits**, making them easier to integrate into larger projects.

5. **Potential for Improved Engine Life**

- For engines running **aggressive power levels** (e.g., 300 hp/400 lb-ft), these rods can **extend component life** by reducing stress on the crankshaft and bearings.

- Useful in **high-mileage engines** where stock rods may be worn or compromised.

6. **Widely Available and Easy to Install**

- Sold by **reputable performance shops** and online retailers (e.g., JE, Summit Racing, local BMW performance specialists).

- Installation is **similar to OEM rods**, though some users may need to adjust rod bolts to manufacturer specs (often **100-120 ft-lbs** for BFO rods).

- Many tuners and mechanics recommend them as a **drop-in replacement** for stock rods in modified engines.

---

### **Cons**

1. **Higher Cost Compared to OEM Rods**

- A **3-piece rod kit (3 rods bolts)** typically costs **$300 $600**, depending on the retailer and whether they include bolts or additional hardware.

- This is **significantly more expensive** than OEM rods (which are often **$50 $150 for a full set**), making them a **non-starter for stock or lightly modified engines**.

- The **ROI (Return on Investment)** is only justified for **high-performance or heavily tuned builds**.

2. **Not Necessary for Stock or Mildly Modified Engines**

- For **stock or naturally aspirated (NA) engines**, OEM rods are **more than sufficient** and far cheaper.

- Unless you re **adding forced induction, aggressive tuning, or running extreme power levels**, the upgrade may be **overkill**.

- Some argue that **stock rods can last 200,000 miles** without issues if properly maintained, making the cost of BFO rods **unjustified for stock builds**.

3. **Installation Complexity**

- While not extremely difficult, **removing and replacing rods** requires **precision and experience**, especially when dealing with **crankshaft alignment and bolt torque specs**.

- Improper installation (e.g., **over-torquing bolts, misalignment**) can lead to **premature wear or failure**, negating the benefits.

- Some users report **difficulty fitting** in tight engine bays, especially in **F20/F56 Minis**, where clearance can be an issue.

4. **Potential for Overkill in Some Applications**

- If an engine is **not running high power levels**, the **strength advantage of 3-piece rods may not be fully utilized**.

- For **mildly tuned engines (e.g., 150 200 hp)**, OEM rods or even **aftermarket 2-piece rods** (e.g., **Eibach, Scat**) may be sufficient.

- Some argue that **stock rods can be upgraded with better lubrication, oil jets, or reinforced crankshafts** instead of replacing the entire rod set.

5. **Limited Availability of OEM-Style Parts**

- Unlike OEM rods, **BFO rods are not interchangeable** with stock components in some cases (e.g., **rod bolt patterns, spacer requirements**).

- Some users report **minor fitment issues** in certain engine builds, requiring **custom spacers or adjustments**.

- Not all **BMW performance shops** stock BFO rods, which may limit availability for **remote or DIY installations**.

6. **Maintenance and Lubrication Requirements**

- While **more durable than OEM rods**, they still require **proper lubrication** (high-quality oil, oil jets if installed) to prevent **rod knock or wear**.

- **Neglecting maintenance** (e.g., **oil changes, rod bolt checks**) can lead to **premature failure**, just like with any high-stress component.

- Some users report that **BFO rods benefit from additional oil squirters**, which may add to the **cost and complexity** of the build.

7. **Potential for Over-Tuning the Engine**

- If an engine is **not properly balanced** with the new rods (e.g., **crankshaft, pistons, bearings**), the **extra strength of BFO rods may not be fully utilized**, leading to **unnecessary expense**.

- Some tuners recommend **upgrading the entire drivetrain** (e.g., **crankshaft, bearings, oil pump**) when installing high-end rods, which can **increase project costs significantly**.

---

### **Conclusion**

- **Turbocharged or supercharged B38 engines** (1.2T/1.5T).

- **High-power builds** (300 hp/400 lb-ft).

- **Engine swaps or heavily modified engines** where stock rods may be inadequate.

- **Users who prioritize reliability and longevity** over cost.

- **Stock or naturally aspirated engines**.

- **Mildly tuned builds** (150 200 hp).

- **Budget-conscious projects** where OEM or 2-piece aftermarket rods suffice.

---

### **Recommendation**

- **Stick with OEM rods** or consider **aftermarket 2-piece rods** (e.g., **Eibach, Scat**) if running mild power levels.

- Focus on **proper maintenance (oil changes, timing belt replacement)** rather than rod upgrades.

- **2-piece aftermarket rods** (e.g., **BorgWarner 1EAT9S 2-piece, Eibach**) may offer a **better balance of cost and performance**.

- Consider **upgrading the crankshaft, bearings, or oil system** instead of jumping to 3-piece rods.

- **Upgraded crankshaft** (e.g., **BorgWarner, JE**).

- **High-quality bearings** (e.g., **Schrick, INA**).

- **Oil squirters** (if not included).

- **Proper lubrication (synthetic oil, oil filter upgrades)**.

- **Consult a BMW performance specialist** to ensure **full drivetrain compatibility**.

- **BFO rods are a strong option** if the engine will see **high loads or aggressive tuning**.

- **Verify fitment** with your specific build (some swaps may require **custom spacers**

Details:

Installation should be performed by a qualified technician to avoid damage. Our part number is correct. Precision-manufactured to OEM specifications. For BMW 216i Dourer 1.5L 1499cc Turbocharged 2018 -2020.

Type: Connecting Rod.ascription and Applications. OE/Part number. Showing as the picture.

O ther items >> you might also like. Optimized design for reliable performance. The reason for return. Package included.

Superior material composition for enhanced strength. Item Quality problem. Return item must be in brand new and unused condition with original tags packaging. Our mechanic will inspect every return item.

Condition: New. 3pcs Connecting Rods For BMW 118I 218I MINI COOPER F20 F56 1.2T 1.5T B38. For shipping damage case. Fitment Type: Direct Replacement.

For BMW 118I 1.5L 1499cc Turbocharged 2015 -2021. For BMW 116i 1.5L 1499cc Turbocharged 2015 -2021. Return items must be in original condition.

part #: 1eat9s prices

• $320.00-$430.99

specifications pistonrinro:

• for models: F20, F56, Cooper
• for makes: Bmw
• brand: Bfo
• mpn: 1eat9s
• california prop 65 warning: California Prop 65 Warning
• finish: Polished
• fitment: For Bmw 116i 118i 216i 218i 318i 418i X1 X2 1.5l 2015-2021
• manufacturer warranty: 2 Years
• material: Steel
• oe/oem part number: 11248623416, 11247933665, I04021001
• performance part: Yes
• type: Connecting Rod
• vintage part: No

seller pistonrinro:

• # reviews: 22413
• city: Elk Grove Village, Illinois
• rating: 99.3%

general pistonrinro:

• Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts
• condition: New

offer pistonrinro:

• availability: In Stock
• best offers: True
• started: February 27, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1

shipping pistonrinro:

• cost: $0.00
• carrier: FedEx
• transit: 4-7 Days
• service: FedEx Ground / FedEx Home Delivery
• type: Fixed
• class: Standard

payments pistonrinro:

• other
• credit card: Visa
• wallet: Google-pay

returns pistonrinro:

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

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