

GrimmSpeed Boost Control Solenoid
Subaru WRX 2015+
Features & Product Details
RallySport Direct proudly carries a great selection of quality performance upgrades by our friends over at GrimmSpeed.
This is the GrimSpeed Electronic Boost Control Solenoid. This is one of GrimmSpeed's most utilized upgrades due to the durability, simplicity of use, and the performance it delivers. This is a must-have for those of you who are getting your vehicle fine-tuned outside of the capacities of the factory 2-port boost control unit. The 3-port system works by interrupting the boost signal that travels from the turbocharger to the wastegate. The factory system will 'bleed' the signal between the turbocharger and the wastegate which will create a system that reacts slowly, and with less precision. The GrimmSpeed BCS will provide a much tighter boost control and consistency that makes life easier for the tuner as the boost control will be more prompt and precise.
DETAILS:
FITMENT NOTE:
Product Video
Specifications
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REVIEWS & CUSTOMER MEDIA

My Tuner recommended this as a way to better Tune my car. Again Grimmspeeds quality is the best.
Install wasn't bad takes more time to take off and put back on the under panel. Dont use this part without tuning, once done boost delivery is great.
Nothing else needs to be said really. Install isn't too bad at all. Car is now protuned and utilizing this solenoid and everything is just so fluent and responsive. Grimmspeed is nothing but the best.
It is Grimmspeed, nothing else needs to be said… This is Grimspeed’s bread and butter, nobody asks “what solenoid should I run” because everyone runs the Grimmspeed solenoid without question… because it is the most reliable and the best on the market. I don’t need to go over how great they package it and how the finish on it is perfect, that just comes with their products.
QUESTIONS & ANSWERS
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Q: Boost Solenoid with Catless J pipe? Mr. Means5 years ago
Will installing this allow me to use a catless J pipe with my 2016 WRX safely without boost creep/ over boost and drivability issues?
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A: Yes it will make running a catless product safer, but you will need a professional tune with this part.
Tyler A. @ RallySport Direct 5 years ago
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Q: Fitment 2011 Legacy 2.5GT StreetSolutions6 years ago
Hello, would it also fit the 2011 Legacy 2.5GT?
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A: This will not bolt on to the '11 LGT. The turbo inlet designs are slightly different, and the BCS will not clear. For that vehicle, you will want to use PN 057046 and PN 057047. That setup will be the adapter plate along with a solenoid that mounts independently of the plate. -Andy
GrimmSpeed @ GrimmSpeed 6 years ago
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