If you're looking to give your 2015-2021 Subaru STI a solid boost without getting overwhelmed by a bunch of mismatched parts, the GrimmSpeed Stage 1 Power Package is a fantastic starting point. This kit is designed with everything working in harmony, so you won’t have to worry about compatibility issues that can come from mixing and matching components from different brands.
First off, let’s talk about the 3-Port Boost Control Solenoid. This little guy is a game-changer when it comes to boost control. It provides more precise and responsive control, which is essential if you're planning to get your car tuned professionally. You’ll notice the difference right away, as it allows your turbo to spool up quicker and more efficiently.
Then there’s the GrimmSpeed Cold Air Intake. It’s not just any intake; it’s designed to minimize pre-turbo restriction. This means your turbo can build boost faster, making your driving experience that much more exhilarating. Plus, the MAF sensor is cleverly tucked away in a heat shield, keeping it cool and ensuring accurate readings.
Installation is a breeze—most folks can get this done in about an hour, thanks to the clear written and video guides that GrimmSpeed provides. No need to splice wires like you might have to with other boost control solutions; this one plugs right into your OEM harness.
What’s included? You’ll get the GrimmSpeed Cold Air Intake System and some stylish GrimmSpeed License Plate Frames to top it off.
This package is specifically designed for the Subaru STI 2015-2024. Just a heads up: make sure to get a proper tune after installation to really make the most of these upgrades. Trust me, your ride will thank you!
Other Part Numbers:
GrimmSpeed #GRM191013
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2015-2024 Subaru STI |
STI | 2015-2024 |

Grimmspeed is an automotive aftermarket company that was founded in 2006 by Justin Grimm. They specialize in creating parts for the exhaust system for various automotive vehicles. Grimm has always had this passion for cars and had always wanted to improve his vehicle’s performance. After numerous trials, he was able to perfect his craft and later on decided to turn it into his career. Today, they have become one of the leading brands when it comes to producing high-performance exhaust systems.
Expanding their Product OfferingThe company initially manufactured parts for Subaru. But as the company expanded, they started offering parts for other brands such as Ford, Mitsubishi, Hyundai, and Mazda. They now offer parts such as intercoolers, intake, exhaust, engine pulleys, gaskets, boost controllers, phenolic spacers and so much more.
Continuous Product DevelopmentGrimmspeed never stops in finding ways to produce innovative products and is always on the push to keep their products up to date. With the rapid change in automotive technology, it is a must that their product is able to adapt to this change for it to satisfy the demand of its users. This is the reason why the company has gained the trust of many tuners all around.
Purchase Grimmspeed Product at Vivid RacingBuilt by an enthusiast for fellow enthusiasts.
If you want a product that is designed to improve the performance of your vehicle, then Grimmspeed is the brand for you. To know more about Grimmspeed, visit Vivid Racing and check out their list of products that would fit your specific needs.