Skip to product information
1 of 6

GrimmSpeed

GrimmSpeed Boost Solenoid - Fits Subaru Legacy GT 2010-2012

GrimmSpeed Boost Solenoid - Fits Subaru Legacy GT 2010-2012

SKU:GRIM-057046

Regular price $130.29 USD
Regular price Sale price $130.29 USD
Sale Sold out
Shipping calculated at checkout.

The GrimmSpeed Boost Control Solenoid has been proven time and time again. With tens of thousands on vehicles across the world, tuners trust it and customers love it. What you see here is the same great solenoid with millions of miles of real world testing with a longer plug-and-play harness and universal bracket, allowing you to adapt it for use with an aftermarket turbo inlet.

 

This product is not for use with the stock 2015 WRX turbo or other stock replacement turbochargers. This solenoid is for aftermarket turbo kits and as such, does not include the required adaptor for the stock FA20 turbo inlet. Please contact customer service via phone (503-619-0055) or email with questions!

An FA20 BCS for Aftermarket Turbos.

  • 1/4in Barbed Fittings - Matches the factory turbo and wastegate hose size
  • 3-Port Solenoid - Proprietary internal modifications prepare the solenoid for extreme conditions below the vehicle
  • Plug-n-Play Wiring Connector - Plugs directly into the factory wiring harness with no modification required
  • Flexible Design for aftermarket turbo inlets - No need to mount the solenoid elsewhere in the engine bay, increasing complexity and hose length

If you've been in the Subaru game for long, you're probably well aware that a 3-port Boost Control Solenoid (BCS) is considered my most to be a 'must have' improvement before having your car tuned. GrimmSpeed has become the trusted brand in the BCS market, with tens of thousands of solenoids in operation today across the globe.

The 2015 WRX offers a unique change of pace, as the factory 2-port solenoid is mounted directly to the plastic turbo inlet and interfaces with an o-ringed feature, rather than a vacuum hose, but, if you're running an aftermarket turbo setup, you may no longer be utilizing the factory turbo inlet. This product includes the solenoid with fittings and connector, as well as a universal mounting bracket, rather than the machined adaptor required by the factory turbo inlet. We've also left the wiring harness longer to facilitate a number of different mounting locations, depending on your turbo setup.

The 3-Port Advantage

boost-solenoid-2015wrx-8-framed-1600.jpg   bcs-subaru-fa20-5-original.jpg

The advantages of a 3-port boost control system vs. the factory 2-port system are readily apparent during the tuning process. The 3-port systems works by interrupting the boost signal traveling from the turbo to the wastegate. The factory configuration simply 'bleeds' the signal from between the turbo and wastegate, which creates a system that is a bit less complex, but reacts more slowly and with less precision. The chart above shows two boost plots. The 'before' is our 2015 WRX, dyno tuned by a third party protuner. The 'after' is the exact same tune, but after the installation of the GrimmSpeed 3-Port BCS. As you can see, the addition of the GrimmSpeed BCS shows much tighter boost control and consistency. This is safer for your car and easier for your tuner.

Why GrimmSpeed?

The GrimmSpeed Boost Control Solenoid has been proven time and time again. With tens of thousands on vehicles across the world, tuners trust it and our customers love it. What you see here is the same great solenoid with millions of miles of real world testing with a longer plug-and-play harness and universal bracket, allowing you to adapt it for use with an aftermarket turbo inlet.

Tuning Notes:

Because this upgraded solenoid affects the way that your vehicle controls boost (that's the point!), it is always recommended that you consult with a tuner immediately following installation. It is not recommended that you drive the car in a way that builds boost without doing so. If you have any questions, don't hesitate to get in touch with us directly!

Included:

  • GrimmSpeed 3-Port Boost Control Solenoid w/ Plug-n-Play Connector
  • Laser-Cut and CNC-Bent Steel Bracket, Black Zinc-Plated w/ Stainless Press-In Nuts
  • Zinc-Plated Barbed Fittings, Pre-Assembled w/ Anaerobic Sealant
  • 4ft of 1/4in Vacuum Hose w/ Zipties
  • All Necessary Hardware

Fitments:

  • 2015+ Subaru WRX (utilizing barbed aftermarket inlet)
  • 2010-2012 Subaru Legacy GT (utilizing barbed aftermarket inlet)
  • All FA20-Equipped Vehicles (utilizing barbed aftermarket inlet)

INSTALL GUIDE

Installation will vary based on the turbo setup that you're running. Below is the installation for the stock turbo inlet, which will help get you most of the way there. Consult the manufacturer of your turbo kit for more detailed directions or feel free to contact us directly for guidance.

GrimmSpeed FA20 3-Port BCS Installation GuidePDF Document Icon
View full details

Collapsible content

What's in the Box

Warranty Information

RalliTEK BRANDED PRODUCTS LIFETIME WARRANTY

RalliTEK branded products are warranted to the original owner against manufacturing defects in materials and workmanship for the lifetime of the product.

If a RalliTEK 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. This policy covers only original, unaltered, and unmodified materials and workmanship. This warranty does not cover damage caused by incorrect installation, accident, improper care, negligence, normal wear and tear, or the natural breakdown of colors and materials over extended time and use. Damage not covered under warranty may be repaired for a reasonable rate and a fee will be charged for return shipping.

No payment or reimbursement shall be made for installation, removal, transportation, or other charges. The remedies outlined in this instrument are exclusive and the liability of RalliTEK with respect to any sale shall not exceed the price of the product on which the liability is based.

For warranty evaluation, please contact RalliTEK Customer Service at (503) 619.0055 or info@rallitek.com to obtain a return authorization. Once this step has been completed, your product must be returned directly to the RalliTEK Warranty Department, 13339 NE Airport Way, Suite 500, Portland, OR 97230. All shipping to the Warranty Department must be pre-paid and insured. RalliTEK will not be liable for damaged or lost inbound packages.

      NOTE: This warranty is only available within the United States or Canada

  • This warranty gives you specific legal rights; you may have other rights, which vary from state to state.
  • This warranty does not cover products sold by RalliTEK that are not RalliTEK branded products.

The RalliTEK website sells discontinued, special markup, and slightly blemished products at significant discounts as 'factory seconds' products. This warranty does not automatically cover products purchased as factory seconds. RalliTEK reserves the right to determine if any warranty applies on a case-by-case basis for factory second parts. If approved, the RalliTEK Warranty Department may repair factory second products for a reasonable charge and applicable shipping charges.

MANUFACTURER WARRANTIES (FOR NON-RALLITEK BRANDED PRODUCTS)

Non-RalliTEK branded products do not have any written or implied warranties. Products on RalliTEK.com are sold with the warranty applied directly from the manufacturer. The customer must contact the product brand manufacturer for any warranty details. All products sold by RalliTEK are intended for off-road and/or race use only, as suggested by the manufacturer, and should be installed and set up by professional service centers only. RalliTEK is not responsible for any product failure or failure due to installation. Should a warranty claim arise, the customer and the manufacturer will handle all warranty issues directly.

There is no warranty on high-performance or race-related parts due to the nature of usage.

No payment or reimbursement shall be made for installation, removal, transportation, or other charges. The remedies outlined in this instrument are exclusive and the liability of RalliTEK with respect to any sale shall not exceed the price of the product on which the liability is based.

EXCEPT AS STATED OTHERWISE IN THIS WARRANTY, RalliTEK MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. RalliTEK shall not, in any case, be liable for special, incidental, consequential, indirect, or other similar damages arising from any breach of these warranties even if RalliTEK or its agent has been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you. This warranty is governed by the laws of the State of Oregon.

Installation Instructions

Applications

Subaru Legacy 2.5 GT Limited - 2010
Subaru Legacy 2.5 GT Premium - 2010
Subaru Legacy 2.5 GT - 2010
Subaru Legacy 2.5 GT Limited - 2011
Subaru Legacy 2.5 GT - 2011
Subaru Legacy 2.5GT Limited - 2012
Subaru Legacy 2.5 GT - 2012