Grimmspeed Stealthbox Intake (Black) - Subaru WRX VA Seats & Rails For more specifics on installing

For more specifics on installing a Planted Seat Bracket and what other components you may need please refer to our installation instructions and our Frequently Asked Questions section

- HKS Core Size in mm: 695x178x100 vs Stock Core Size in mm: 680x143x64

and Track Race

that you just installed

Grimmspeed Stealthbox Intake (Black) - Subaru WRX VA Seats & Rails For more specifics on installingIntroduction Inspiration for the StealthBox Intake came from internal discussions about what we wanted from an intake system for the 2015+ WRX. Of course performance is the highest priority, but at GrimmSpeed so much more than that goes into a product. We wanted an intake that purred quietly under normal driving circumstances, but would roar at wide open throttle. We wanted an intake that looked at home in the well sported 2015+ WRX engine bay instead