RADIUM ENGINEERING 20-0703-03 Fuel Injection

( Brand: Radium Engineering ), ( Manufacturer Part Number: 20-0703-03 ), ( Type: Auto )

Review RADIUM ENGINEERING

The Radium Engineering 20-0703-03 is a high-performance aftermarket oil cooler designed specifically for the Subaru WRX STI and Forester XT models with a 2.5L EJ25 engine. This oil cooler is an essential upgrade for enthusiasts who push their vehicles to the limit, ensuring optimal engine performance and longevity.

The Radium Engineering 20-0703-03 is constructed from 6061-T6 aluminum, known for its strength and durability. It features a compact, yet efficient design with a total volume of 2.3 quarts (2.2 liters), which provides ample cooling capacity without taking up too much space under the hood.

This oil cooler utilizes a high-density, plate-and-fin core design. The plates are made of brass, which is resistant to corrosion and provides excellent heat transfer capabilities. The fins are made of aluminum, which is lightweight and efficient in dissipating heat. The oil cooler also includes a high-flow, full-row, baffled oil sump guard to ensure proper oil flow and prevent oil starvation during high-speed driving.

The Radium Engineering 20-0703-03 comes with a high-quality, TIG-welded, 3-row, stainless steel braided coolant hose kit. The hoses feature a -6 AN fitting on each end, which are designed to provide a secure connection and prevent leaks. The oil cooler also includes a machined aluminum oil filter mounting bracket, which makes installation easy and straightforward.

One of the standout features of this oil cooler is its compatibility with various cooling system configurations. It can be used with either the factory coolant system or a separate, dedicated oil coolant system. The oil cooler also includes an adjustable inlet and outlet port position, allowing for flexibility in routing the coolant lines.

The Radium Engineering 20-0703-03 is a top-tier aftermarket oil cooler for Subaru WRX STI and Forester XT models. Its robust construction, efficient design, and compatibility with various cooling system configurations make it an excellent choice for enthusiasts seeking optimal engine performance and reliability.

Radium Engineering 20-0703-03 is a popular aftermarket throttle body for various applications, particularly for Subaru and Mitsubishi engines. Here are some pros and cons of buying this throttle body to help you make an informed decision.

1. Improved Airflow: This throttle body is designed to provide better airflow compared to the stock unit. The larger bore size and smoother design help to improve engine performance.

2. Better Response: The throttle body offers better throttle response, making the engine more responsive to driver inputs. This can lead to a more enjoyable driving experience.

3. Durability: Radium Engineering is known for producing high-quality, durable parts. This throttle body is no exception, and it is designed to withstand the rigors of high-performance driving.

4. Compatibility: This throttle body is compatible with a wide range of Subaru and Mitsubishi engines, making it a versatile option for many drivers.

5. Easy Installation: The installation process for this throttle body is relatively straightforward, and many users report that it can be installed in a few hours with basic hand tools.

1. Cost: The Radium Engineering 20-0703-03 throttle body is not an inexpensive option. It is priced higher than some other aftermarket throttle bodies, so it may not be the best choice for those on a tight budget.

2. Requires Tuning: In order to get the best performance from this throttle body, it may require some tuning. This can add to the overall cost and complexity of the installation process.

3. Potential Vacuum Leaks: Some users have reported experiencing vacuum leaks after installing this throttle body. This can lead to a rough idling engine or other performance issues.

4. May Require Adjustments: Some users have reported that the throttle body may need to be adjusted in order to achieve optimal performance. This can add to the overall installation time and complexity.

The Radium Engineering 20-0703-03 throttle body offers several benefits, including improved airflow, better response, durability, compatibility, and easy installation. However, it also comes with some potential drawbacks, such as cost, the requirement for tuning, potential vacuum leaks, and the need for adjustments. Ultimately, whether or not this throttle body is a good investment for you depends on your specific needs and budget. If you are looking for a high-performance option that can provide significant improvements to your engine's performance, then the Radium Engineering 20-0703-03 may be worth considering. However, if you are on a tight budget or are looking for a more affordable option, then you may want to explore other aftermarket throttle bodies.

If you are serious about improving your engine's performance and are willing to invest in a high-quality, durable option, then the Radium Engineering 20-0703-03 throttle body is worth considering. However, be prepared for the potential costs and complexities of tuning and adjustments. If you are on a tighter budget or are looking for a more straightforward option, then you may want to explore other aftermarket throttle bodies that offer similar performance benefits but at a lower price point. Ultimately, the best choice depends on your specific needs, budget, and level of technical expertise.

part # 20070303 prices

• $522.44-$555.96

specifications injectiopug:

• brand: Radium Engineering
• manufacturer part number: 20-0703-03
• type: Auto

payments injectiopug:

• wallet: Google-pay
• other
• credit card: Diners-club

shipping injectiopug:

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

seller injectiopug:

• rating: 99.4%
• # reviews: 13072

general injectiopug:

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

returns injectiopug:

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

offer injectiopug:

• started: October 31, 2025
• options: Ship-to-home
• quantity: 2
• sold: 0
• availability: In Stock

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