SUBARU 32005443 Left Driver Cylinder Head 306-59346 Impreza/

( Manufacturer Part Number: 32005443 ), ( Interchange: 306-59346 ), ( Type: Cylinder Head Assembly ), ( Manufacturer Warranty: 1 Month ), ( Id: 7973651b-48cb-4df6-99c7-d2f4de3dac98 )

Review SUBARU 443 Impreza/ Left Driver Cylinder Head Without fits FORESTER IMPREZA OUTBACK TURBO 2005

The **Subaru 32005443 2005 Forester/Impreza/Outback Left Driver Cylinder Head Turbo** is a high-performance, factory-specified component designed exclusively for Subaru s 2.5L naturally aspirated (NA) engines, specifically those equipped with the EJ255 turbocharged setup found in the 2005 model year Forester, Impreza, and Outback variants. This precision-engineered cylinder head is crafted from high-grade aluminum alloy, ensuring optimal heat dissipation and structural integrity under the demanding conditions of forced induction. The head features a robust turbocharged design, complete with integrated intake and exhaust ports optimized for efficient airflow, minimizing turbulence and maximizing volumetric efficiency. The left driver-side head includes a dedicated turbo inlet manifold connection, allowing for seamless integration with the turbocharger system, while the combustion chambers are meticulously machined to promote optimal fuel-air mixture and combustion efficiency. This part is fully compatible with the original engine bay layout, including the correct valve cover, spark plug holes, and mounting points, ensuring a perfect fit without the need for modifications. Built to meet or exceed OEM specifications, the cylinder head is equipped with high-quality gaskets and sealing surfaces to prevent leaks and maintain peak performance. Whether restoring a classic turbocharged Subaru or upgrading an existing engine, this cylinder head delivers the reliability and power potential of the original factory design, making it an essential component for enthusiasts seeking authenticity and performance.

Buying a 2005 Subaru Forester or Impreza/Outback with the **2.5L EJ257 engine (left-hand cylinder head, turbocharged)** often referred to as the "2005 turbo" or "EJ257 turbo" is a polarizing decision. This engine is known for its power and reliability in stock form, but it also comes with significant drawbacks, particularly regarding long-term durability and maintenance costs. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of the 2005 Subaru Forester/Impreza/Outback (EJ257 Turbo)**

1. **Power and Performance**

The EJ257 turbo produces **200 220 hp and 220 240 lb-ft of torque**, which is significantly more than the naturally aspirated (NA) 2.5L engines in other Subarus from the same era. This makes it a strong choice for enthusiasts who want a more engaging drive without resorting to aftermarket modifications. The turbocharged version is also more capable off-road compared to NA models, thanks to its higher torque output.

2. **AWD Standard**

All 2005 Subarus with this engine come with **Symmetrical All-Wheel Drive (AWD)**, which is a major advantage in snowy, rainy, or rough-terrain conditions. The AWD system is well-tuned for the turbo engine s power delivery.

3. **Mod Potential**

The EJ257 turbo is one of the most mod-friendly Subaru engines from the 2000s. It responds well to **turbo upgrades, fuel system upgrades, and engine management tweaks**, making it a popular choice for builders. Common mods include:

- **Turbo upgrades** (e.g., Garrett GT28 or GT28R)

- **Fuel system upgrades** (e.g., larger injectors, high-flow fuel pump)

- **Exhaust and intake upgrades**

- **Engine management** (e.g., Link G4 , Haltech, or standalone ECU)

With the right mods, power outputs of **300 400 hp** are achievable, though this requires significant investment and expertise.

4. **Reliability in Stock Form (Compared to NA EJ25)**

While not as bulletproof as some naturally aspirated Subaru engines (e.g., the EJ22 or EJ25 NA), the EJ257 turbo is **more robust than the NA 2.5L engines** in terms of torque handling. The turbocharger helps cool the engine slightly, reducing the risk of catastrophic failure from overheating (though this is still a concern).

5. **Aftermarket Support**

- **Parts** (turbo kits, headers, fuel system upgrades)

- **Tuning software** (stock ECU tunes, custom maps)

- **Support communities** (forums like TurboSubaru, Reddit s r/EJ257, etc.)

- **Build guides and tutorials**

This makes it easier to maintain, modify, and troubleshoot the engine compared to less common Subaru engines.

6. **Resale Value (For Well-Maintained Examples)**

While not high, a **well-documented, modded EJ257 turbo** can hold its value better than a stock NA Subaru, especially if it has a strong power output or a unique build. However, resale is still limited compared to popular platforms like the WRX or STI.

7. **Fun to Drive**

The turbocharged engine delivers **quick acceleration and a sporty feel**, especially when properly tuned. The AWD system also makes it more engaging in spirited driving scenarios.

---

### **Cons of the 2005 Subaru Forester/Impreza/Outback (EJ257 Turbo)**

1. **Turbocharger Reliability Issues**

- **Turbo spool issues** (slow response, lag)

- **Turbo bearing failure** (leading to catastrophic engine damage if the turbo seizes)

- **Wastegate leaks or failure** (causing boost leaks and poor performance)

Replacing a turbo on an EJ257 can cost **$800 $1,500 **, depending on whether you go with an OEM or aftermarket unit (e.g., Garrett GT28, BorgWarner EFR).

2. **Fuel System Weaknesses**

- **Fuel pump failure** (common after 50,000 70,000 miles)

- **Injector fouling or failure** (especially with ethanol blends)

- **Fuel rail leaks** (common on older EJ257s)

Upgrading to **high-flow injectors, a larger fuel pump, and a fuel pressure regulator** is often necessary for reliable performance, adding **$500 $1,500 ** in costs.

3. **Oil Consumption and Sludge Buildup**

- **Excessive oil burning** (can lead to **PCV system failures, carbon buildup, and sludge**)

- **Oil leaks** (valve cover gasket, oil filter housing gasket, rear main seal)

- **Sludge in the turbo and oil passages** (can cause turbo failure or engine damage)

Regular **oil changes (every 3,000 5,000 miles)** and using **high-quality synthetic oil** (e.g., Mobil 1, Pennzoil Platinum) are **critical**. A **full oil system flush** is often recommended after 50,000 miles.

4. **Head Gasket and Cooling System Issues**

- **Head gasket leaks** (especially around the turbo side)

- **Overheating** (due to poor cooling system design)

- **Thermostat failures** (commonly stuck open or closed)

- **Water pump failures** (often linked to the timing belt)

A **cooling system overhaul** (new hoses, thermostat, water pump, radiator) is often needed by **80,000 100,000 miles**, costing **$500 $1,200**.

5. **Transmission and Drivetrain Wear**

The **5-speed manual (in Forester/Impreza) or 4-speed auto (in Outback)** can wear out prematurely if the engine is modified or driven aggressively. Common issues:

- **Clutch wear** (in manuals)

- **Torque converter failure** (in automatics)

- **Differential and transfer case wear** (especially in AWD models)

A **transmission rebuild or replacement** can cost **$1,500 $3,000 **.

6. **Electrical and Sensor Failures**

- **MAF sensor failure** (common, affects fueling)

- **O2 sensor failures** (multiple sensors can go bad)

- **Crankshaft position sensor (CKP) or camshaft position sensor (CMP) issues**

- **ECU failures** (rare but possible)

These issues can lead to **check engine lights, rough idling, or drivability problems**, often requiring **$200 $500 per sensor**.

7. **Timing Belt and Water Pump Replacement**

The **timing belt must be replaced every 60,000 105,000 miles** (Subaru s recommended interval). If neglected, it can cause **catastrophic engine damage** (bent valves, rod knock). The water pump is often replaced at the same time, adding to the cost (**$500 $1,000**).

8. **Exhaust Manifold and Header Failures**

The **stock exhaust manifolds** (especially on the turbo side) can **crack or warp**, leading to **boost leaks and poor performance**. Upgrading to **aftermarket headers** is often necessary for reliability and performance.

9. **High Maintenance Costs Over Time**

While the EJ257 turbo is **cheaper to buy than a WRX or STI**, the **cumulative cost of mods and repairs** can add up quickly. A **well-maintained but heavily modded EJ257** can easily cost **$5,000 $10,000 ** over 100,000 miles, depending on the level of modifications.

10. **Depreciation and Market Limitations**

- The **resale value is low** compared to modern turbocharged Subarus (e.g., FA20/FA24 WRX).

- **Insurance costs** may

Details:

Picture in the listing may not be of actual item sold; it a stock picture only. Buyer pays return shipping if wrong color ordered. Warranty period begins the day after delivery. Transfer cases will not be included with transmissions from 4x4 or All Wheel Drive vehicles.

Most items are shipped the same-day as purchase. Search for more parts SUBARU FORESTER. Model: SUBARU FORESTER. Some external sensors or solenoids may need to be replaced.

Free shipping, if offered, applies only to commercial addresses with proper equipment dock and forklift unload. Transmissions must be shipped to a commercial address with dock and forklift or the closest shipping terminal. Quick shipping. Transmission lines will need flushed, along with the transmission oil cooler needs replaced if equipped, this to be done so contaminants from bad not ruin your replacement.

Axle seals, front and drive shaft seals will also need to be replaced. Depending on the age of vehicle and other circumstances they will rust show signs corrosion. SUBARU FORESTER 05 w/o Turbo; LH. In some cases the Transmission Control Computer module is internal and incorporated with valve body, which may require body to be replaced.

Engines must be shipped to a commercial address with dock and forklift or the closest shipping terminal. Block, Cylinder Heads, Timing Cover, Oil Pan, Flywheel. Buyer will need to replace the transmission oil filter, put a new pan gasket on, flush and add manufacturer specific fluids.

part #: 32005443 prices

• $125.00-$237.50

specifications cylinderheapar:

• for models: Turbo, Forester, Impreza, Outback
• for makes: Subaru
• mpn: 32005443
• interchange: 306-59346
• type: Cylinder Head Assembly
• manufacturer warranty: 1 Month
• id: 7973651b-48cb-4df6-99c7-d2f4de3dac98

general cylinderheapar:

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

payments cylinderheapar:

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

shipping cylinderheapar:

• transit: 4-10 Days
• class: Standard
• cost: $0.00
• service: USPS Ground Advantage
• carrier: USPS
• type: Fixed

returns cylinderheapar:

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

offer cylinderheapar:

• sold: 0
• started: April 24, 2026
• quantity: 1
• options: Ship-to-home
• best offers: True
• availability: In Stock

seller cylinderheapar:

• # reviews: 25885
• city: Erie, Pennsylvania
• rating: 99.6%

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