Awesome part
This also work on the 15 + xt forester which I have and it was easy to install took maybe 30 minutes
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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. With expertise in designing machined parts and a tried and true boost control solenoid, we were excited to dig in and create a solution with an already proven pedigree of high performance and quality.
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. That boost is redirected back into the turbo inlet and re-ingested by the turbo using our machined adapter. This is important, as the factory Mass Airflow Sensor has already measured that air and is expecting that your motor will use it during combustion, rather than venting it to the atmosphere. 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.
We began by recreating the factory turbo inlet and solenoid in CAD to ensure a perfectly fitting system. From there, we designed a beautifully fitting machined adapter that would recreate the o-ring sealing feature that the factory solenoid uses. This bracket features 1/8 NPT threads so that both barbed fittings (included) and AN fittings can be used interchangeably, for use with the GrimmSpeed BCS, Manual Boost Controller, or other boost control solutions.
A small mounting bracket secures the solenoid to the machined adapter, to create a compact system, while still allowing those interested in running other boost control solutions the flexibility to do so. Mounting the solenoid directly in place of the stock solenoid allows for vacuum hoses of similar length and a shorter wiring harness. Lastly, we identified the exact electrical connector used on the stock solenoid so that the GrimmSpeed solution would be a true plug and play.
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 and an innovative mounting solution, designed specifically for your vehicle. The machined adapter also features standard NPT threads, should you choose to upgrade to AN lines and fittings, or even a different boost control solution (manual, standalone, hybrid, etc) down the road. Finally, the GrimmSpeed BCS system will arrive fully assembled and ready for installation.
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!
This also work on the 15 + xt forester which I have and it was easy to install took maybe 30 minutes
Stop looking for any other EBCS and buy this one now! You will not find better quality, craftmanship, fitment or performance. Very straight forward installation with well done instructions in the description above ☝️.
Perfect fitment!!! Easy to follow instructions. Works great. Had the car tuned after installation. Night and Day difference! Thanks grimmspeed!
Great item recommended by my tuner - replaced the lumpy stock power delivery with smooth linear power and increased HP. Potent item in the hands of a good tuner.
installation was easy. fitment and quality is excellent. the best EBCS for the 205+ wrx. thank you Grimmspeed and team!
I purchased this product upon my tuners reccomendation. Product was beautifully packaged and assembled as stated. Direction are very easy to follow and install took maybe 30 minutes. Highly recommend if anyone is looking into a new EBCS. Thank you Grimmspeed!
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.
So received the product in a timely manner and the install was easy and fast. Tune was done recently and my tuner mentioned that having the modifications I did grimmspeed intake charge pipe and 3port ebcs and a few other brand parts my 15+ wrx made cleaner power and boost and made the tune a breeze and also was told I made the most power he had seen for 15+ with the mods equal to everyone else. Grimmspeed for the win
Bought so I could get tuned by Mikey Botti. Grimmspeed doesn't disappoint.
Impressed with how fast these guys ship out compared to some other Subaru vendors!
As always with Grimmspeed products the craftsmanship is outstanding and fitment is spot on. Install was super quick and installed it on my car after work on a week night. I highly recommend this product specially if you are trying to keep a nice smooth boost curve and also control boost spike it will help protect your engine as well.
i just installed the boos controller in my wrx and after a pro tune i am really happy with the results. i highly recommend it
Bought this for my 15 WRX. Now, my turbo spools quicker and my boost level is maintained through out the rev range. Highly recommended.
Installation was a snap overall, additional available material (video, installation guide) were excellent. Got my WRX tuned yesterday and there were no boost control issues at all, my plot is butter smooth.
As with every other GrimmSpeed product build quality and fitment were perfect. Functionally the difference when monitoring boost is night and day- the EBCS holds boost far more steady than the OEM unit. Absolute must have for a good, efficient tune.
Builds boost faster, and top end boost is much much better. This is a must have mod.
Pair this with a reputable tuner and you're good to go. The hype behind this EBCS on the forums AND from tuners/shops is real. On top of that, the customer service is amazing. Art is a TRUE G. He got this out to me super quick (literally 3 days before my pro-tune) which allowed me to get it onto the car before then. My dyno plot came out so crisp and smooth and I think I owe it to the EBCS and my tuner. Such a fun drive. Definitely recommend!!
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