The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and tested to work well together, as a complete system. Instead of piecing together parts from many different manufacturers and hoping that they're design theories are compatible, consider starting with one of our excellent Staged Power Packages based on your goals!
The GrimmSpeed Stage 1 Power Package is an excellent place to start when modifying your 2015-2021 Subaru STI. The upgraded GrimmSpeed 3-Port Boost Control Solenoid offers more accurate and more responsive boost control and is a must when having your vehicle professionally tuned. The GrimmSpeed Intake adds an additional performance increase by reducing pre-turbo restriction, which allows your turbo to build boost more quickly and more efficiently.
It's important to note that all GrimmSpeed Staged Power Packages require a proper tune.
Stage 1 Package Components
- GrimmSpeed 3-Port Electronic Boost Control Solenoid
- GrimmSpeed Red Cold Air Intake System
- GrimmSpeed License Plate Frames
Stage 1 Package Features
- Decrease Spool Time - Lower intake restriction and better boost control
- Plug and Play into OEM Harness - No splicing wires like other BCS solutions
- Minimize Intake Restriction - Combining the advantages and eliminating the negatives of both traditional intake designs
- MAF sensor location - Inside heat shield, isolated from engine bay heat
- Custom reusable high flow air filter - Integrated velocity stack entrance smooths incoming air
- Made in the USA - Right here in Minnesota, in fact
- 60min Installation - Extremely simple with our written and video guides
California Residents, Proposition 65 WARNING