Built for 2015+ Subaru WRX owners who demand more from their FA20T without sacrificing OEM fitment, the Garrett PowerMax intercooler is the direct answer to heat soak holding back your power. This is the upgrade for enthusiasts who want measurable gains on the dyno, not just a bigger box under the hood. Engineered with advanced CFD and proven bar-and-plate construction, it delivers real-world performance validated in wind tunnel testing.
Specifications
- Core Size: 70% larger than stock
- Construction: Bar-and-plate
- End Tanks: Cast aluminum
- Fin Design: Advanced offset fin design
- HP Capacity: Supports up to 530 HP (395 kW)
- Horsepower Gain: Up to 16 HP (12 kW)
- Torque Gain: Up to 15 lb-ft (20 N-m)
- Intake Temperature Reduction: Average 30° F (16.7° C)
- Installation Time: 1 hour
- Garrett P/N: 891185-6001
Performance & Application
This PowerMax intercooler is purpose-built for the 2015+ Subaru WRX 2.0L FA20T platform, delivering a direct fit performance upgrade without the compromises of custom fabrication. The larger core and optimized end tank design work together to improve airflow and push back the point of heat saturation, meaning more consistent power delivery pull after pull. Enthusiasts running the FA20T under repeated hard driving or track conditions will see the biggest benefit, as testing showed the heat saturation point extended from 4 dyno pulls to 6 dyno pulls. It’s the ideal upgrade for drivers chasing sustained horsepower and torque gains over stock, without reengineering their intake system.
Compatibility & Fitment
- 2015+ Subaru WRX 2.0L FA20T (not for STI)
Frequently Asked Questions
- How much horsepower can this intercooler support?
- The Garrett PowerMax intercooler supports up to 530 HP (395 kW).
- How much of a performance gain does this intercooler provide?
- During back-to-back dyno comparisons in a wind tunnel, this intercooler showed an increase of up to 16 HP (12 kW) and 15 lb-ft (20 N-m) of torque compared to the OE unit.
- Will this intercooler fit in the stock location without modifications?
- Yes, this direct fit performance intercooler installs in the stock location in about 1 hour and reuses the stock bolts, hoses, and clamps. Some modification to the OE engine cover is required.
- Does this fit the Subaru STI?
- No, this intercooler is designed for the 2015+ Subaru WRX 2.0L FA20T and is not for the STI.
For WRX owners serious about eliminating heat-induced power loss, the Garrett PowerMax intercooler delivers proven, dyno-verified gains in a true bolt-on package engineered specifically for the FA20T platform.
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