Grimmspeed StealthBox Cold Air Intake RED - Subaru 15-21 WRX - 060067 MS109 Upgrading these springs will make

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

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

all you need is a little soapy water and a lint-free rag to keep these hoses looking their sexiest

-12AN Flare Plug- Black - 806-12-2

01-05 Honda Civic HX 1

Grimmspeed StealthBox Cold Air Intake RED - Subaru 15-21 WRX - 060067 MS109 Upgrading these springs will makeInspiration 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