Grimmspeed StealthBox Cold Air Intake Red 2015-2021 WRX SALE_SubaruImpreza reducing unwanted flex and bounce

reducing unwanted flex and bounce during aggressive driving

this premium manifold enhances exhaust flow with its equal length 4-2-1 layout

The large 1

Material: High-density tri-extruded thermoplastic

Grimmspeed StealthBox Cold Air Intake Red 2015-2021 WRX SALE_SubaruImpreza reducing unwanted flex and bounceInspiration for the StealthBox Intake came from internal discussions about what we wanted from an intake system for the 2015 21 Subaru 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 21 WRX engine bay instead