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The GrimmSpeed Stage 1 Power Package is an excellent place to start when modifying your 2008-2014 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.
Part #: 191004
Stage 1 Package Components
1x GrimmSpeed 3-Port Electronic Boost Control Solenoid (057007)
1x GrimmSpeed Cold Air Intake System (060051)
2x GrimmSpeed License Plate Frames (111002)
Stage 1 Package Features
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