TRQ Radiator Assembly Aluminum Core Compatible with 15-20 Subaru WRX

In this review of the TRQ Radiator Assembly Aluminum Core compatible with 2015-2020 Subaru WRX STI, the bottom line is simple: this is a direct-fit replacement aimed at owners who need reliable cooling performance without a premium price. The reviewer found the radiator's premium aluminum core and OE-equivalent core thickness deliver tangible temperature control benefits for street and mild performance use, while installation remains straightforward for a competent DIYer or a professional shop.

Key Features

• Direct fit replacement: Designed to match OE mounting points and dimensions so installation aligns with factory locations and hardware.
• Aluminum core: Provides efficient heat transfer for improved cooling compared with older or degraded radiators.
• Core thickness equal to OE: A 0.63 in (16 mm) core thickness maintains expected cooling capacity and airflow balance for the engine.
• Full-size core dimensions: With a core width of 27.09 in and core height of 13.35 in, the radiator covers the same frontal area as the factory part.
• Warranty coverage: Backed by a 2-year / 24,000-mile warranty on the product itself, offering replacement assurance for manufacturing defects.
• Standard inlet/outlet locations: Top left inlet and bottom left outlet with roughly 1.57 in diameters simplify hose routing and compatibility.

Who It's For

The TRQ radiator is well suited to Subaru WRX STI owners from model years 2015 through 2020 who need a cost-conscious, direct-fit replacement that restores or improves cooling. It is particularly useful for daily drivers and owners doing routine maintenance who prefer a core that matches OE thickness and overall size.

It is less appropriate for heavily modified powertrains or sustained track use where a larger or multi-row core would be preferable. Buyers who prioritize an included lifetime of labor or coverage for installation-related issues should note the warranty covers product cost only, not labor or incidental damages.

Pros & Cons

Pros

• Good fit and easy to install for the intended WRX STI years, reducing time in the shop.
• Improved cooling performance reported by customers, with the aluminum core aiding heat dissipation.
• Clear value for money thanks to construction quality and a two-year warranty on the product.

Cons

• Some users report mixed experiences with leakage; buyers should inspect mounts and hose connections during installation.
• Not designed with an integrated engine or transmission oil cooler, so additional cooling options are needed for heavy track use.

Specifications

Compatible Vehicles	2015-2020 Subaru WRX STI
Core Material	Aluminum
Core Thickness	0.63 in (16 mm)
Core Width	27.09 in (688 mm)
Core Height	13.35 in (339 mm)
Inlet / Outlet Diameter	1.57 in (40.4 mm) / 1.57 in (40.2 mm)
Outlet Location	Bottom left

Our Verdict

The TRQ radiator assembly is a practical, cost-effective replacement for most 2015-2020 Subaru WRX STI owners who want OE-like dimensions and improved cooling from an aluminum core. It represents solid value for street-driven cars and routine performance use, though those needing heavy-duty or integrated oil cooling should consider purpose-built aftermarket cores.

Frequently Asked Questions

Does this radiator fit my 2017 WRX STI?
Yes. The unit is listed as compatible with 2015 through 2020 Subaru WRX STI models and is a direct-fit replacement.

Is an oil cooler included?
No. This radiator does not include an engine or transmission oil cooler; those must be installed separately if required.

What does the warranty cover?
The product is covered for 2 years or 24,000 miles for the cost of the product only; it does not cover labor, installation, or incidental damages.