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+ 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 Cold Air Intake System (Red or Black StealthBox; Use drop down!)
- GrimmSpeed License Plate Frames
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.