Name: GrimmSpeed Stealthbox Air Intake Subaru WRX 2015-2021
Brand: GrimmSpeed
SKU: 060060
Price: 399.0 USD
Availability: InStock

GrimmSpeed Stealthbox Air Intake Subaru WRX 2015+ - Dirty Racing Products

$399.00

Shipping calculated at checkout.

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 StealthBox 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.

Quick 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

As with any intake for the 2015+ WRX, tuning is required after installation to maximize gains and safety.

GrimmSpeed Stealthbox Intake Kit 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

While only a very small portion of the intake is visible after installation (nearest the turbo), we still decided to offer a color choice for the intake tube. The heat shield will always be our stealthy black wrinkle, but the tube can be either a matching black, or a wrinkle red.

** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tightening the clamp. This will ensure that the velocity stack within the filter is allowed to function properly! **

Review Shipping Policy

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