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Universal Mounting Solution
They tend to spring up out of nowhere and cause hours of troubleshooting headaches
but would roar at wide open throttle
The dramatic firewall flex is the source of this performance flaw in Subarus that we came to solve
Grimmspeed gives you the factory fitment you have been waiting for
GrimmSpeed StealthBox Cold Air Intake - Subaru WRX 2015-2020 Piping Color:Red Universal Mounting SolutionInspiration for the StealthBox Intake came from internal discussions about what GS 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 of a shoebox
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