Product Description
Inspiration for the Stealth Box Intake came from internal discussions about what we wanted from an intake system for the 2015-2021 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 2015-2021 WRX engine bay instead of a shoebox stuffed into the fender area. From here, the Stealth Box 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.
Technical Specs:
- +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
Includes:
- 1x CNC bent intake tube w/ MAF flange
- 1x GrimmSpeed high-flow dry air filter
- 1x Aluminum heat shield
- 1x 12" MAF harness extension
- 1x Silicon hump coupler
- 3x Stainless steel worm gear clamp
- 3x Rubber gasket material cut-to-length
- 2x MAF sensor machine screws
Fitments:
- 2015-2021 Subaru WRX
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