Grimmspeed StealthBox Cold Air Intake RED - Subaru 15-21 WRX - 060067 MS109 01-05 Honda Civic HX 1

01-05 Honda Civic HX 1

Another common issue that we are fixing is that in stock form

You will also need to purchase a High-performance Slim Fan

Upgrading these springs will make your gear engagements a bit sharper since they replace the soft OEM ones

Linear Piston And Damping Curve

Grimmspeed StealthBox Cold Air Intake RED - Subaru 15-21 WRX - 060067 MS109 01-05 Honda Civic HX 1Inspiration 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 of a shoebox