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  2. sku: 5586851071720751
  3. RADIUM 20-0331

RADIUM ENGINEERING 20-0331 Fuel Injection 688943530046

20-0331 Radium Engineering

( Brand: Radium Engineering ), ( Manufacturer Part Number: 20-0331 ), ( Type: Auto ), ( UPC: 688943530046 )

Review RADIUM ENGINEERING

The Radium Engineering 20-0331 is a high-performance aftermarket oil cooler designed specifically for Subaru WRX and STI models with the EJ25 engine. This oil cooler is an essential upgrade for those who demand the best from their Subaru, particularly for high-performance applications and track use.

This oil cooler from Radium Engineering is constructed from billet aluminum, which not only provides excellent heat dissipation but also adds a touch of aesthetic appeal to your vehicle. The cooler features a large, high-density core, which increases the cooling capacity and efficiency compared to the OEM cooler. The fins on the cooler are optimally sized and spaced to ensure maximum airflow and cooling efficiency.

The 20-0331 oil cooler comes with an integrated bypass kit, which helps to maintain oil pressure during cold starts and ensures that the oil temperature stays within optimal ranges during high-performance driving. The bypass kit also features a billet aluminum oil filter adapter, which makes installation and maintenance a breeze.

The cooler comes with AN-6 inlet and outlet ports, which allow for the use of high-quality AN lines for improved flow and durability. The mounting brackets for the cooler are CNC-machined from billet aluminum, providing a strong and secure mounting solution for the cooler. The brackets also come with adjustable mounting points, allowing for easy alignment and clearance for various applications.

This oil cooler is a direct fit for Subaru WRX and STI models with the EJ25 engine, making installation straightforward and hassle-free. The cooler also comes with all necessary hardware for installation, including mounting brackets, AN lines, and bolts. The installation process is well-documented with clear instructions, making it an ideal upgrade for the DIY enthusiast or the professional installer.

In conclusion, the Radium Engineering 20-0331 oil cooler is a high-quality and high-performance upgrade for Subaru WRX and STI models with the EJ25 engine. Its billet aluminum construction, large and high-density core, integrated bypass kit, and adjustable mounting brackets make it an essential addition for those seeking improved cooling capacity and efficiency, particularly for high-performance driving and track use.

Radium Engineering 20-0331 is a high-performance aftermarket thermostat designed for various applications, particularly for Subaru and Mitsubishi engines. Here are the pros and cons of buying this thermostat:

Pros:

1. High-performance design: The Radium Engineering 20-0331 thermostat is designed for superior cooling efficiency. It allows the coolant to flow faster and more evenly throughout the engine, which can help reduce engine temperatures and improve performance.

2. Durable construction: This thermostat is made from high-quality materials, such as billet aluminum housing and a durable stainless steel spring. It is also designed to withstand extreme temperatures and pressure, making it ideal for high-performance applications.

3. Wide temperature range: The Radium Engineering 20-0331 thermostat has a wide temperature range, which allows it to work effectively in a variety of conditions. It is suitable for both street and track use.

4. Easy installation: Installing this thermostat is a relatively simple process, as it uses the same mounting points as the OEM thermostat. This can save time and money compared to other upgrades.

Cons:

1. Higher cost: Compared to OEM thermostats, the Radium Engineering 20-0331 thermostat is more expensive. This may be a deterrent for some buyers who are on a tight budget.

2. Not suitable for all vehicles: While this thermostat is designed for Subaru and Mitsubishi engines, it may not be compatible with all models or years. It is important to check the compatibility before making a purchase.

3. May require additional modifications: In some cases, installing this thermostat may require additional modifications to the cooling system, such as a larger radiator or additional cooling fans. This can add to the cost and complexity of the project.

Conclusion:

The Radium Engineering 20-0331 thermostat is a high-quality, high-performance upgrade for Subaru and Mitsubishi engines. It offers superior cooling efficiency, durable construction, and easy installation. However, it comes with a higher cost compared to OEM thermostats and may not be suitable for all vehicles. Ultimately, whether or not this thermostat is a good investment depends on your specific needs and budget.

Recommendation:

If you are looking for a high-performance thermostat for your Subaru or Mitsubishi engine and have the budget for it, the Radium Engineering 20-0331 thermostat is a great choice. It offers superior cooling efficiency, durable construction, and easy installation. However, if you are on a tight budget or unsure of compatibility, it may be worth considering other options first.

part # 200331 price

  • $208.95

specifications injectiopug:

  • brand: Radium Engineering
  • manufacturer part number: 20-0331
  • type: Auto
  • upc: 688943530046

general injectiopug:

  • Air Fuel Delivery > Fuel Injection Parts > Additional Fuel Injection Parts
  • condition: New

payments injectiopug:

  • other
  • wallet: Paypal
  • credit card: Visa

seller injectiopug:

  • # reviews: 10441
  • rating: 99.0%

offer injectiopug:

  • options: Ship-to-home
  • sold: 0
  • availability: In Stock
  • started: May 26, 2025
  • quantity: 2

shipping injectiopug:

  • type: Fixed
  • transit: 4-6 Days
  • class: Standard
  • service: Standard
  • cost: $0.00

returns injectiopug:

  • paid by: Buyer
  • policy: Returns Accepted
  • time: 30 Days
type: auto,
category: auto parts > air fuel delivery > fuel injection parts > additional fuel injection parts, sku: 5586851071720751,

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