Save up to 40% on VR Forged wheel sets! - Shop Now
Wheel Sets - Category - March
  See more parts for your Subaru WRX

GrimmSpeed Red StealthBox Cold Air Intake Subaru WRX 15-16

$399.00

GrimmSpeed

Model #060067

Free Shipping


Shopper Award

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. MAF diameter and placement, total bend angle, filter location, and heat shield design were the primary variables during the design phase. To ensure accurate readings, unaffected by the intense heat of the engine bay, MAF sensor placement absolutely must be within the heat shield. To minimize restriction, it was important to keep the total bend angle in the intake tube as low as possible, but still raise the filter location away from the ground to protect it from the elements. Lastly, testing showed the importance of utilizing the factory ram air scoop to feed the otherwise stagnant air in front of the fender.

Each intake begins with a CNC bent and laser cut 6061 Aluminum tube. Contrary to popular belief, particularly from those producing composite intakes, we found that the increased thermal mass of using thicker aluminum tubing (1/8????? wall thickness) kept the intake from being vulnerable to rapid temperature change. This is called the 'thermal flywheel effect' and will keep the rapidly fluctuating temperatures inside your engine bay from affecting intake temps as drastically. Custom MAF flanges are machined from the same 6061 alloy and are placed on the straight nearest the filter, where we observed the most consistent cross-sectional flow. Mounting brackets are laser cut from 3/16????? thick aluminum plate and CNC bent for perfect and repeatable fitment. Finally, heat shields are laser cut, CNC bent and hand assembled before going to powdercoating for a durable wrinkle black finish.

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.

Features:

  • +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
  • 1x CNC bent intake tube with 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
Install Guide:Fitments:
  • Subaru WRX 2015-2022
Note(s):
  • As with any intake, tuning is required after installation to maximize gains and safety.
  • 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!

Other Part Numbers:
GrimmSpeed #grm060067

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm

https://www.P65Warnings.ca.gov

Vehicle Engine Notes
2014-2022
Subaru WRX

Who is Grimmspeed?

Grimmspeed is an automotive aftermarket company that was founded in 2006 by Justin Grimm. They specialize in creating parts for the exhaust system for various automotive vehicles. Grimm has always had this passion for cars and had always wanted to improve his vehicle’s performance. After numerous trials, he was able to perfect his craft and later on decided to turn it into his career. Today, they have become one of the leading brands when it comes to producing high-performance exhaust systems.

Expanding their Product Offering

The company initially manufactured parts for Subaru. But as the company expanded, they started offering parts for other brands such as Ford, Mitsubishi, Hyundai, and Mazda. They now offer parts such as intercoolers, intake, exhaust, engine pulleys, gaskets, boost controllers, phenolic spacers and so much more.

Continuous Product Development

Grimmspeed never stops in finding ways to produce innovative products and is always on the push to keep their products up to date. With the rapid change in automotive technology, it is a must that their product is able to adapt to this change for it to satisfy the demand of its users. This is the reason why the company has gained the trust of many tuners all around.

Purchase Grimmspeed Product at Vivid Racing

Built by an enthusiast for fellow enthusiasts.

If you want a product that is designed to improve the performance of your vehicle, then Grimmspeed is the brand for you. To know more about Grimmspeed, visit Vivid Racing and check out their list of products that would fit your specific needs.





 



What is the GrimmSpeed Limited Lifetime Warranty Policy?GrimmSpeed-branded products are warrantied to the original owner against manufacturing defects in materials and workmanship for the lifetime of the product.

If a GrimmSpeed-branded product covered by this warranty fails due to a manufacturing defect we will repair the product, without charge, or replace it, at our discretion. Only original, unaltered and unmodified materials and workmanship are covered by this policy and you must provide proof of original purchase to be fully covered. This warranty does not cover damage caused by accidents, improper care/installation, negligence, reasonable/normal wear and tear, or the natural breakdown of colors, coatings and materials over extended time and usage. GrimmSpeed cannot be held liable for any damage to your vehicle and/or its components caused by failures associated with the previous statement. Damage not covered under warranty may be considered for repair for a reasonable rate or a reduced price for a replacement piece (a fee will be charged for return shipping).This warranty is available in the United States and Canada.

This warranty does not cover products sold by GrimmSpeed that are not GrimmSpeed-branded products.

This warranty gives you specific legal rights; you may have other rights, which vary from state to state.

The GrimmSpeed website sells GrimmSpeed-branded discontinued, special make-up, and slightly blemished products at significant discounts as 'factory seconds' products. This warranty does not necessarily cover any products purchased as 'factory seconds'. The GrimmSpeed Warranty Department may repair 'factory seconds' products for a reasonable charge and a fee will be charged for return shipping.

Is normal wear and tear covered?

The GrimmSpeed Limited Lifetime Warranty covers manufacturing defects in materials and workmanship, but it does not cover normal wear and tear over extended time and usage. Wear and tear is damage that naturally and inevitably occurs as a result of normal use. Regardless of how carefully you use, or how well you care for your GrimmSpeed product, like all performance parts it will eventually begin to show age and wear. Common examples of wear and tear that would not be covered under the limited lifetime warranty include denting, abrasions or scratches, color changing from heat in exhaust components and so on, less common examples include flex-section wear and fatigue cracks over an extended period of time.

How do I send my product in for warranty?

The first step is to contact support@grimmspeed.com and let them know of your issues/concerns. From there, a customer service representative will personally work with you to determine the best path forward. For the quickest service, please include your contact information and photos of the failed product along with a copy of your receipt/invoice in your initial email.

Upon request from your customer service representative, your product must be returned directly to The GrimmSpeed Warranty Department at 650 Taft St NE, Suite 300, Minneapolis, MN, 55413. All shipping to Warranty must be pre-paid and insured. GrimmSpeed cannot be liable for lost in-bound packages.

Check out these other great products