SUBARU 306-10241 Right Passenger Cylinder Head

( Manufacturer Part Number: 306-10241 ), ( Part : 306-r ), ( Items Included: Oem ), ( Material: Aluminum, Cast Iron ), ( Type: Cylinder Head ), ( Stock : Pk004 ), ( Manufacturer Warranty: 1 Month )

Review SUBARU Right Passenger Side Cylinder Head Without Oem fits FORESTER TURBO 2012–2013

The **Subaru 306-10241 cylinder head turbo kit** for the **2012 2013 Forester (right-hand drive)** is a meticulously engineered aftermarket solution designed to elevate the performance of your FA platform Subaru while maintaining reliability and compatibility. This high-quality turbocharger assembly is specifically tailored to pair with the **EJ255 engine**, offering a seamless upgrade for those seeking increased horsepower and torque without compromising the integrity of the stock cylinder head. Crafted from premium materials, including a robust **titanium or forged steel turbine wheel** and a **high-flow wastegate assembly**, this turbo kit is built to withstand the demands of forced induction while minimizing lag and maximizing efficiency. The **right-hand drive (RHD) configuration** ensures precise alignment with the engine bay layout, eliminating the need for modifications to the stock turbo housing or intake manifold. Whether you're tuning for daily driving or track use, this kit integrates smoothly with popular tuning solutions like **AEM or Haltech ECUs**, allowing for precise calibration to optimize boost levels, fuel delivery, and intercooling performance. The inclusion of **high-temperature seals, reinforced bolts, and a durable wastegate spring** ensures durability under aggressive driving conditions, while the **compact footprint** maintains compatibility with stock or aftermarket intake and exhaust systems. For enthusiasts looking to push their Forester s limits, this turbo kit delivers a balance of power and refinement, making it an ideal choice for those who demand performance without sacrificing reliability.

### **Pros and Cons of Buying a 2012 2013 Subaru Forester with the 2.5L FB25 Turbo (Right-Hand Passenger Cylinder Head)**

#### **Pros**

1. **Reliability of the FB25 Engine**

- The 2.5L FB25 turbo engine is known for its durability, especially when properly maintained. Subaru s aluminum cylinder heads and forged internals help it withstand higher stress compared to some naturally aspirated engines.

- The turbocharger (Garrett GT1546) is a common, well-supported unit with a good reputation for longevity if serviced regularly.

2. **All-Wheel Drive (AWD) Standard**

- Subaru s Symmetrical AWD is a major advantage for all-weather driving, providing better traction in snow, rain, and off-road conditions compared to FWD or RWD vehicles.

3. **Good Handling and Driving Dynamics**

- The Forester s compact size, balanced weight distribution, and Subaru s boxer engine placement contribute to responsive and engaging handling, making it enjoyable to drive on both highways and twisty roads.

4. **Spacious Interior for Its Class**

- The Forester offers more cargo space than many compact SUVs, with a practical trunk and foldable rear seats. The cabin is roomy for three passengers, though rear legroom is modest.

5. **Resale Value and Brand Loyalty**

- Subaru retains a strong resale value, and the Forester is one of the most reliable compact SUVs. Buyers often prefer Subarus for their safety and durability, which can make future resale easier.

6. **Safety Features**

- Models from 2012 2013 come standard with Subaru s EyeSight Driver Assist (available in later years) and a robust safety rating. The body structure is well-built, and crash test scores are strong.

7. **Aftermarket Support**

- The FB25 turbo engine has a dedicated aftermarket community, with widespread availability of parts, upgrades, and tuning solutions. Common modifications include cold air intakes, exhaust systems, and turbo upgrades.

8. **Fuel Efficiency (Compared to V6 Alternatives)**

- While not as efficient as a diesel or hybrid, the turbocharged 2.5L offers better MPG than a naturally aspirated 2.5L (FB20) or a V6 (FA24), making it a practical choice for daily driving.

---

#### **Cons**

1. **Potential Turbocharger and Oil System Issues**

- The Garrett GT1546 turbo is prone to failure if not maintained properly (oil changes every 5,000 7,500 miles, high-quality oil). Common symptoms of turbo failure include whining, reduced power, or oil leaks.

- The oil pump and oil filter housing gasket can wear out, leading to oil leaks or pressure issues. Some owners report oil leaks from the valve cover gasket or oil filter housing.

2. **Head Gasket and Cylinder Head Concerns**

- The **right-hand passenger cylinder head** (as mentioned) is known to be more prone to warping or leaks due to thermal stress from the turbo. This can lead to coolant leaks, overheating, or even head gasket failure if not addressed.

- The FB25 is more susceptible to head gasket issues than the naturally aspirated FB20, though proper maintenance (coolant flushes, temperature monitoring) can mitigate risks.

3. **Transmission Reliability (CVT in Later Models)**

- The 2013 Forester (especially with the CVT) has had some reports of transmission issues, including rough shifting or failure. The 2012 model still uses a traditional automatic (6-speed), which is more reliable but less efficient.

- If the CVT is present, ensure it has been well-maintained (fluid changes every 60,000 miles).

4. **Rust Susceptibility**

- Subarus are notorious for rust, especially in snowy or salted regions. Inspect the wheel wells, rocker panels, and undercarriage for rust before purchasing. Rust can lead to structural weaknesses over time.

5. **Interior Quality and Noise**

- The Forester s interior is functional but lacks the premium feel of competitors like the Honda CR-V or Toyota RAV4. Plastic trim can feel cheap, and road/noise insulation is average.

- Wind and road noise can be noticeable, especially at highway speeds.

6. **Maintenance Costs**

- While the engine is durable, parts and labor can be expensive. Subaru dealerships often charge premium rates for repairs, and some aftermarket parts may not be as readily available as for more common vehicles.

- The turbo, head gasket, and oil system require vigilant maintenance to avoid costly failures.

7. **Resale Depreciation**

- While Subarus hold value well, the Forester s resale depreciation is slightly higher than some rivals like the Honda CR-V or Toyota RAV4. This means you may lose more money over time compared to a more popular compact SUV.

8. **Limited Off-Road Capability**

- While the AWD helps, the Forester is not a true off-roader. It lacks features like locking differentials, skid plates, or higher ground clearance found in vehicles like the Subaru Outback or Toyota 4Runner.

---

### **Key Considerations Before Buying**

1. **Service History**

- Verify that the vehicle has had **regular oil changes** (every 5,000 7,500 miles) and **coolant flushes** (every 60,000 miles). Ask for records of turbo, head gasket, and oil system maintenance.

- Check for signs of **oil leaks** (under the oil filter housing, valve cover, or turbo area) and **coolant leaks** (white smoke from exhaust, sweet smell, overheating).

2. **Inspection for Rust**

- Thoroughly inspect the **wheel wells, rocker panels, and undercarriage** for rust. Rust can weaken the structure and lead to future issues.

3. **Test Drive for Turbo and Engine Behavior**

- Listen for **whining or rattling** from the turbo under acceleration. Check for **lag** (delay in power response) or **unusual noises** from the engine.

- Test the **A/C and heater** to ensure the head gasket hasn t failed (coolant in the cabin or sweet-smelling exhaust are red flags).

4. **Transmission Check**

- If the vehicle has a **CVT**, ensure it shifts smoothly without jerking or hesitation. A traditional automatic (2012 model) is more reliable but less efficient.

5. **Budget for Potential Repairs**

- Be prepared for **turbo replacement** ( $1,500 $2,500 installed), **head gasket replacement** ( $1,000 $1,800), or **oil system upgrades** (new oil pump, housing gasket, etc.).

- Consider setting aside **$2,000 $3,000** for unexpected repairs in the first year or two.

---

### **Conclusion and Recommendation**

The **2012 2013 Subaru Forester with the 2.5L FB25 turbo** is a **solid choice for buyers who prioritize reliability, AWD capability, and practicality** provided the vehicle has been **properly maintained**. The turbo engine offers a good balance of power and efficiency, and Subaru s AWD is one of the best in its class. However, **potential issues with the turbo, head gasket, and oil system** require diligent upkeep to avoid costly failures.

- **Complete service records** (oil changes, coolant flushes, turbo checks).

- **No signs of rust** (especially in critical areas).

- **No history of overheating, oil leaks, or turbo whining**.

- **A smooth-driving transmission** (preferably the 2012 model with the traditional automatic).

...then this Forester can be a **great long-term investment**.

**If the vehicle lacks maintenance records, shows signs of neglect (oil leaks, coolant issues, or turbo problems), or has significant rust**, it may not be worth the risk. In such cases, consider a **naturally aspirated FB20 Forester** (less turbo-related issues) or a **used Honda CR-V/Toyota RAV4** for a more mainstream compact SUV.

- **Buy it if:** You can verify thorough maintenance, inspect for rust, and are prepared for potential turbo/head gasket repairs.

- **Avoid it if:** The service history is unclear, there are signs of past neglect, or the price is significantly inflated due to perceived "Subaru reliability."

- **Alternative:** If you want a turbocharged Forester with fewer issues, consider a **2014 model** (though later years may have CVT concerns).

For the right buyer, this Forester can be a **durable, capable SUV** but it demands **attention to maintenance** to avoid common pitfalls.

Details:

All damage is shown in pictures. Model: SUBARU FORESTER. PLEASE SEE ALL PICTURES: Unless stated otherwise all our body parts are used and may have some damage, scuff sand scratches. Its a real easy process.

Also, make sure to compare this item with yours before buying as well please do your research will fit vehicle. Paint color may be different then what it appears in photos. You might need to get the item repaired, sanded, primed and/or painted. Also fits: FORESTER 12-13 w/o Turbo; R.

part #: 30610241 prices

• $224.99-$263.68

specifications cylinderheapar:

• for models: Turbo, Forester
• for makes: Subaru
• for years: 2012-2013
• mpn: 306-10241
• part : 306-r
• items included: Oem
• material: Aluminum, Cast Iron
• type: Cylinder Head
• stock : Pk004
• manufacturer warranty: 1 Month

shipping cylinderheapar:

• carrier: UPS
• type: Fixed
• transit: 5-8 Days
• service: UPS Ground
• cost: $0.00
• class: Standard

returns cylinderheapar:

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

payments cylinderheapar:

• other
• wallet: Paypal
• credit card: Visa

seller cylinderheapar:

• # reviews: 1186
• city: Winston-Salem, North Carolina
• rating: 99.4%

offer cylinderheapar:

• best offers: True
• availability: In Stock
• started: June 4, 2026
• sold: 0
• quantity: 1
• options: Ship-to-home

general cylinderheapar:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads

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