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Organic Grimmspeed Stage 1 Power Package Red - 2015-2021 Wrx | 191010-rd Online Exclusive [JgPEerCo]

$47.99 $153.99 -69%

GrimmSpeed Stage 1 Power Package Red - 2015-2021 WRX Elevate the performance of your 2015-2021 WRX with the GrimmSpeed Stage 1 Power Package. This comprehensive kit is designed to provide a significant boost in horsepower, torque, and throttle respon

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Organic Grimmspeed Stage 1 Power Package Red - 2015-2021 Wrx | 191010-rd Online Exclusive [JgPEerCo]

GrimmSpeed Stage 1 Power Package Red - 2015-2021 WRX

Elevate the performance of your 2015-2021 WRX with the GrimmSpeed Stage 1 Power Package. This comprehensive kit is designed to provide a significant boost in horsepower, torque, and throttle response. The package includes an upgraded Stealthbox Cold Air Intake system, replacing the factory's restrictive unit, which allows the turbocharger to breathe more efficiently. This direct replacement system is engineered to enhance the overall performance of your vehicle without compromising on quality or ease of installation.

Key Features and Benefits

The GrimmSpeed Stage 1 Power Package is a game-changer for your WRX. It features a 3-Port Electronic Boost Control Solenoid that improves boost control response, ensuring faster and more effective boost building. This solenoid is a direct plug-and-play into the OEM harness, eliminating the need for complex wiring. The kit also includes a custom reusable high-flow air filter and a MAF sensor location inside a heat shield, isolated from engine bay heat. With this package, you can expect a decrease in spool time and a plug-and-play installation process, making it an ideal choice for performance enthusiasts seeking an easy upgrade.

Performance Expectations

After installing the GrimmSpeed Stage 1 Power Package, you can anticipate a noticeable improvement in your WRX's performance. The combination of the upgraded cold air intake and the electronic boost control solenoid will lead to rock-solid boost control and an increase in both torque and horsepower. The solenoid keeps boost in the system, preventing bleeding away, while the cold air intake optimizes compressor efficiency, resulting in faster and higher boost pressure. This package is the perfect starting point for those looking to unlock the true potential of their WRX, with a 60-minute installation time and the assurance of high-quality, Made in the USA components.

What Our Customers Say

January 23, 2026

Absolutely no complaints!

I am thoroughly satisfied with my purchase.

- Edward M..

January 23, 2026

Absolutely no complaints!

The product is a great time-saver.

- Opal Martinez.

January 23, 2026

Absolutely no complaints!

Absolutely thrilled with this. It's perfect.

- Madison R..

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