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 of a shoebox stuffed into the fender area. From here, the SteathBox was born. We took the concept one step further and referenced the F-117 Nighthawk as inspiration for the stealthy look of the GrimmSpeed heat shield. It should come as no surprise that the performance it packs is equally unique.
- +32wtq (14.3%) and +21whp (9.6%)
- Designed in CAD – Perfect mating with the factory turbo and ram-air scoop
- Low bend angle aluminum tube – Minimize restriction and maximize performance
- Shielded MAF sensor placement – Protects MAF from heat, which increases accuracy of readings
- Made in the USA – Manufactured right here in Minnesota