"loves it"
The Original Direct-Fit BCS for turbo Subarus.
GrimmSpeed is proud to provide the most complete and easy to use 3-Port Electronic Boost Solenoid for available for all turbo Subarus. Unlike your OEM 2-port solenoid, the GrimmSpeed BCS will allow for extremely high resolution boost control, providing your tuner with the hardware he needs to safely tune your car with rock solid boost levels. Using our solenoid, you are able to spool your turbo quicker and maintain tight control of boost levels throughout your power curve. In addition, our solenoid features a balanced valve to withstand up to 120psi without a slowing response by even a single millisecond.
QUICK SPECS:
- Decrease Spool Time - flows 10% more than the competition
- Plug and Play into OEM Harness - no splicing wires like other BCS solutions
- Works Safely with Factory Subaru ECU - custom coil to match ECU voltage
- Nickel Plated Fittings - not the easily breakable plastic fittings!
- 15min Installation - extremely simple with our written and video guides
DESIGN:
Revolutionizing the Subaru boost solenoid market, we have created model specific install brackets that allow you to install our Boost Control Solenoid with a factory fit and finish. To top it all off, our solenoid also uses a Subaru wiring harness connector so that you can simply unplug your OEM solenoid and plug ours in. No more cutting and crimping OEM wires together!
The solenoid itself is one of a kind. MAC manufactures pneumatic control products for the largest commercial operations in the world, where every minute of downtime can cost tens of thousands of dollars, so we worked closely with their engineers to design this unique valve, incorporating proprietary features, exclusive to GrimmSpeed, that make our solenoid the toughest on the market. Those features include special seals to protect it from moisture and high temp coils to keep response times at 6 milliseconds or less, even in extreme heat. We have worked with many of the top tuners in the country to ensure that our solenoid works safely with the factory Subaru ECU.
MATERIALS:
Our special solenoid features, combined with our factory-fit brackets, ensure that this complete boost control solution will withstand the harsh heat and vibration of your engine bay. The Subaru harness connectors that we use include weatherproof terminal seals, carefully crimped with DELPHI equipment by our expert assembly staff. Mounting brackets are laser cut and then black zinc plated to ensure corrosion resistance. Each bracket has threaded PEM nuts pressed in for a solid connection with no risk of stripping threads. Each low profile 1/8" NPT nickel plated fitting is installed in the proper orientation using a 120psi thread sealant for a clean, compact, robust installation.
TRUST YOUR TUNER:
You don't need to take our word for it, trust your tuner When it comes to boost control systems, be sure to consult with your tuner to ensure that you're building a setup that they're confident tuning. The good news is that with well over 25,000 units in use on some of the fastest Subarus in the world, with the GrimmSpeed Boost Control Solenoid, you'll be in great company. As with any change to your boost control system, upgrading to a 3-port solenoid does require tuning.
"The GS 3-port BCS provides rapid boost response while maintaining the ability to make acute adjustments via turbo dynamics. While many other boost control solenoids react to adjustments too fast which can make them difficult to control with as much finesse as the stock bleed system. This solenoid can make micro-adjustments at the edge of target boost not only providing better spool, but overall more control." - AWD Tuning
"The GrimmSpeed™ BCS is a compact, well designed unit. Its design as a 3-port solenoid provides better boost control then the stock bleed-type style. Often, this enables a tuner to cut mapped wastegate duty cycles in half. This change in WGDC gives a tuner more granularity when tuning, and can yield much improved boost curves. In addition, the 3-port design often significantly improves spool." - Bullwinkle Tuning
FITMENTS:
- 2002-05 Subaru WRX
INSTALL GUIDE:
Boost Controller Install Instructions - Subaru
Overall rating: 5.0 / 5 from 36 reviews.
AI Generated Review Summary
The GrimmSpeed 3-Port Electronic Boost Control Solenoid offers superior boost response, ease of installation, and compatibility with Subaru ECUs. It provides precise boost control, quick spool times, and a factory-fit design, making it a reliable upgrade for Subaru WRX owners.
Summary topics
- Boost Response: 16%
- Boost Control: 34%
- Ease of Installation: 25%
Review topics: [quality, customer service, power, install, replacement, issues, car, boost, spool, grimmspeed, tuner, mod, ebcs, comes].
Review highlights
- "Quick and easy install, very precise boost control (with a professional tune), and excellent customer service." —
- "The install is super easy and the boost stays consistent." —
- "Got the EBCS very quickly from GS, install was easy, car made 300 easy with steady and precise boost control!" —
Reviews
"Only the best quality, performance, and service given"
Ebcs solenoid
"Had one installed prior on first fbo build, replaced with a same but new solenoid after hearing that i was getting zero controlled pressure and it is functioning like it normally should with this new tune. Good product but id be wary when cleaning engine bay compartment to not let any sensors (in general) to not get soak or contact with any liquids. I believe thats what cause my old solenoid to short out. I have a ewg setup with fbo and tune running 450+ with this replacement ebcs. Tuner recommended"
EJ205 20G Turbo EWG
"My second Subaru I’ve installed a Grimmspeed EBC. Must have in my opinion. Great boost control and faster spool up you can’t go wrong there"
Spool Time
"Quality boos controller. Very easy to install. However, I did not see a "10% faster spool time" that is claimed in the quick specs section. My turbo actually spools slightly slower than when I had my stock boost controller. 2002 Subaru WRX with FP 71HTA turbo."
easy install solid controller
"Great product had it installed in under 20 minutes! Allowed my tuner to lock in 20 psi for my stage 3 bugeye. Does what it's intended to. Recommended"
dollar for dollar amazing product!
"im soo happy i bought the EBCS from GrimmSpeed! Top quality, wasn't hard to install and rock solid boost! now im a loyal customer/fan!"
Boost builds much quicker
""Got my BCS from the group buy and installed it last night. The install went very smooth (besides the rain starting like half way through the install) and the solenoid bolted right into the stock solenoid location perfectly. (I've got an 05 so I can't vouch for the other MY brackets, but I'm sure they work just as well.) I loaded up my new map and took her for a spin. I have to say I'm very impressed. Right away I could feel a difference in first and second gear, my car doesn't feel as laggy and boost builds a lot quicker. In the higher gears it's just as nice, boost comes on quick and stays rock solid. I'm still on the stock TD04 too...I can't even imagine how great this would be on a bigger turbo ""
Absolutely amazing product.
"Recently purchased this 3 port ebcs to replace my stock one that malfunctioned on my 05 LGT. It absolutely blew my mind away how much it opened up the entire system and advanced throttle response. Highly recommend for anyone needing a replacement or just wants quicker response from their vehicle."
EBCS - Awesome!
"Got the EBCS very quickly from GS, install was easy, car made 300 easy with steady and precise boost control!"