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CANADIAN BASED COMPANY! - No customs or duty fees to worry about! All Prices in CAD.
CANADIAN BASED COMPANY! No customs or duty fees to worry about!

GrimmSpeed StealthBox Cold Air Intake - Subaru 2015+ WRX Black

Manufacturer: GrimmSpeed
SKU grm060060
Product Availability
Checking Inventory...
Original price $578.69 - Original price $578.69
Original price
$578.69 - $578.69
Current price $578.69

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.

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

** 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! **

The GrimmSpeed intake produced an additional 32ftlb (14.3%) at 3000rpm and 21whp (9.6%) at 5500rpm, with healthy gains all the way across both curves. As mentioned before, the AFR and Boost curves are also included to demonstrate that the gains shown are from the intake alone, not the manipulation of other variables.

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 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.

2015-2017 Subaru WRX

Manufacturer Part Number: 060060
WH Part Number: grm060060

***  Product Availability Information (Handling time) ***

Laval Location: Typically ready to ship within 24 to 48 hours

Canadian Warehouse: Typically ready to ship within 2 to 4 business days

Manufacturer Stock: We have transfers coming from the US warehouse every 3 to 4 weeks.

US Shipping Warehouse: This warehouse is only for shipping to our US customers.

Out of Stock or Special Order: This means we either do not have live inventory for this manufacturer, or this item is a special order from the manufacturer, or this can also mean that the product is on backorder at the manufacturer. If you would like a more precise ETA, please contact our sale team prior to placing your order.