SKU: GRM191015

$2,694.99 CAD

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Includes Air Filter  Yes
Includes Airbox  Yes
Includes Boost Solenoid  Yes
Includes Downpipe  Yes - Catted / Hi-Flow
Includes Intercooler  Yes - Silver Colour
Includes Turbo Heat Shield  Yes
Manufacturer Warranty  Limited Lifetime Warranty


The beauty of the GrimmSpeed Stage 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 their design theories are compatible, consider starting with one of our excellent power packages designed to work as one unit.
The GrimmSpeed Stage 3 Power Package has everything you need to capture the power you are looking for in 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. The GrimmSpeed Catted Downpipe replaces the restrictive OEM Downpipe and makes your engine exhaust gas flow smoother and faster. 
Stage 3 Package Components
- GrimmSpeed 3-Port Electronic Boost Control Solenoid
- GrimmSpeed Cold Air Intake System 
- GrimmSpeed Catted Downpipe
- GrimmSpeed Top Mount Intercooler
- GrimmSpeed Top Mount Intercooler Splitter 
- GrimmSpeed Turbo Heat Shield
- GrimmSpeed License Plate Frames 
Stage 3 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
- Hybrid Cold Air/Short Ram Design - Combining the advantages and eliminating the negatives of both traditional intake designs
- Custom reusable high flow air filter - Integrated velocity stack entrance smooths incoming air
- Stainless Steel Construction - The downpipe is constructed of high grade 304L SS for corrosion resistance and durability
- Made in the USA - Right here in Minnesota, in fact
- 2-3hr Installation - Straight forward with our written and video guides
The GrimmSpeed Stage 3 Power Package takes the ideology of increasing turbo efficiency to the final level. All the components of this package work together to decrease restriction both before and after the turbocharger, as well as to provide the ultimate choice in boost control. The result is a system that increases both compressor and turbine efficiency, but also works together to control boost. This package further increases horsepower, torque, and engine safety by decreasing charge air temperatures through a vastly superior intercooler design. This is the definitive choice for more boost, faster spool, safety and consistency, and power production.
- It's important to note that all GrimmSpeed Staged Power Packages require a proper tune.
- Careful attention to installation of the intake tube, air filter, clamps and MAF sensor/o-ring otherwise leaks may occur.
2015-2020 Subaru STI & Type-RA

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