GrimmSpeed 3-Port Electronic Boost Control Solenoid | 2008-2014 WRX / FXT / LGT (057032)

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Grimmspeed EBCS For Subaru WRX / LGT / FXT

Introducing the most complete and easy to use Boost Solenoid available on the market - the GrimmSpeed EBCS!. Their aftermarket boost controller allows you to raise the OEM boost levels in a quick and efficient manner. If you try to raise the boost on the weak OEM boost solenoid it will start to become unpredictable and unable to maintain proper and safe boost levels. Using GrimmSpeed's solenoid you are able to spool your turbo quicker and maintain a rock solid boost level. They have made their solenoid to withstand 120psi, way more than any Subaru will see.

EBCS Features

  • Works Safely with Factory Subaru ECU (does still require tuning)
  • Plug and Play - no splicing wire like other BCS!
  • Nickel Plated Fittings
  • Users can use AN fittings with the solenoid.


  • Get into Boost Much Quicker
  • Faster response and greater flow by more than 10%!
  • 15min Installation - extremely simple with our written and video guides

Please Note:

  • Will require tuning after installation.


  • 2008-2014 Impreza WRX
  • 2005-2009 Legacy GT
  • 2009-2013 Forester XT

What's in the box?

  • GrimmSpeed 3 Port Electronic Boost Control Solenoid
  • Hose



Customer Reviews

Based on 9 reviews
Great product

Works great and looks nice in the engine bay. Shipping was fast and they even added a socket for the bolt. I appreciate your business MAPerformance.

cody kurowski
Good thing to get

Had a few problems with it only giving half boost but works great now and would recommend to anyone gave me an extra pound and a half of boost

Tim F.
Grimspeed EBCS

Got the part very fast despite being ordered on the busiest online shopping day of the year. Arrived in great condition.

Exactly what I needed

Everything was shipped as ordered. Great Grimmspeed products as always and works as it was designed for my 2017 STI. Fast shipping and great prices from MAP. Thanks

Travis Johnson
Love grimmspeed

This boost controller was very easy to put in. Bought this for my 2018 sti it works very well with all of the other parts that I put into my sti.