SET YOUR CAR
TALK TO A PARTS EXPERT
- Exhausts
- Cat Back Exhaust System
- Downpipes And Y-pipes
- Exhaust Headers And Manifolds
- Exhaust Gaskets And Hardware
- Axle Back Exhausts
- Shop All
- Engine Management
- Plug And Play Engine Management
- Staged Power Packages
- Engine Management Sensors
- Stand Alone Engine Management
- Engine Management Harnesses
- Shop All
- Air Induction
- Short Ram Air Intakes
- Turbo Inlet Hoses And Pipes
- Cold Air Intakes
- Air Intake And Maf Hoses
- High Flow Replacement Panel Filters
- Shop All
Product images
Product Media
Community Media
COBB Tuning 3-Port Boost Control Solenoid
Subaru WRX/STi 2002-2007 / Forester XT 2004-2008
In response to recent developments, we have decided to remove select items from sale to ensure we are compliant with all applicable emissions requirements
Features & Product Details
In response to recent developments, we have decided to remove select items from sale to ensure we are compliant with all applicable emissions requirements
Accurate and consistent boost control
Plug and play 18-gauge wiring harness
1/8" nickel-plated barbed fittings
Rated up to 120 psi
Includes custom aluminum BCS mount
Custom tuning required - please contact your preferred tuning professional in order to safely utilize this component
RallySport Direct is your number one source for quality upgrades and enhancements brought to you by COBB TUNING.
This is the COBB 3-Port Boost Solenoid (BCS). This is an excellent upgrade for those looking for precise boost control that is easy to install and tune. This BCS will eliminate boost fluctuations and boost creep inherent in the OEM boost control system, providing stable and repeatable boost control to base the vehicle’s tune on. It is equally capable of providing this stable boost control at stock boost levels as well as extremely high boost levels associated with big-power builds.
DETAILS:
NOTE:
Product Video
Specifications
Brand:
COBB Tuning
Adjustable:
Yes
Color:
Blue
Number of Ports:
3
OEM Replacement:
Yes
QTY:
1
Tuning Required:
Yes
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED
REVIEWS & CUSTOMER MEDIA
Customer Photos and Videos
5out of
5stars
W Jones
Super easy install, with great boost performance, with noticeable difference in smoothness! Much better than the stock 2 port !
0 of 1 people found the following review helpful
4out of
5stars
WinterBorn
one size fits most type of product. The installation left a bit to be desired. I have an 03 WRX wagon. the OEM EBCS has rubber bushings insulating the solenoid from vibrations from the car. The Cobb is not drilled for those. I drilled them myself and installed the rubber solenoids on the mounting bracket. After that it was a fantastic install. Although I may have paid another $20 if Cobb would have chosen to include proper silicone hose and tiny hose clamps instead of the rubber lines (near the turbo heat zone) and zipties. once I flashed the ECU to the +EBCS map the car ceased all boosting issues! I can reach 15+lbs of boost on the OTS map.
0 of 1 people found the following review helpful
5out of
5stars
striker775
A must have.
0 of 1 people found the following review helpful
5out of
5stars
e.s
Huge difference over stock. Boost comes on earlier and smoother. While the Cobb OTS tune works, I wouldn't run it for long without a custom tune. I saw small knock events with regularity until I switching to custom. Stage 1+EBCS felt equivalent to Stage 2 w/stock boost controller dyno tune to my butt. Very easy to install.
3 of 3 people found the following review helpful
3out of
5stars
arjohnson81537109
Originally purchased this ebcs back in january of 2016 for a motor build. Got it tuned and it ran flawlessly for 19 months of daily driving, approximately 23,000 miles. Buttery smooth boost delivery even with a larger turbo. Out of the blue it died completely and it sent me down the troubleshooting black hole. Car would only make about 6lbs of boost with a bpt 20g, no CEL or any other obvious issues. Eventually figured out the ebcs was dead and popped in a new one. All boost issues were resolved and I'm back to normal. Sucks that the warranty on this ebcs is only one year from cobb, but after a lot of searching on forums I could not find a single thread that mentioned a failed aftermarket ebcs. That being said I am sure that I am one of the very few that have run into one failing.
QUESTIONS & ANSWERS
-
Q: Tuning Reliable063 years ago
I have an 06 wrx wagon with an nvidia turbo back exhaust and Perrin intake. No cobb access port or any other modifications to speak of. Can I put this on and go or do I need to get it tuned after installing this?
-
-
1 of
1 people found the
following answer helpful
A: No, you would 100% need a tune for this and i would highly recommend one anyway with the mods you have, Thanks!
Rick C. @ RallySport Direct 3 years agoWas this answer helpful?
-
1 of
1 people found the
following answer helpful
-
Q: Running SD on 06 STI bbostock18095613 years ago
-
-
0 of
1 people found the
following answer helpful
A: You would need to add a vacuum source pre-turbo somehow. Either buy a short extension between the turbo and filter, or tap into the filter body somehow. Thanks
Rick C. @ RallySport Direct 3 years agoWas this answer helpful?
-
0 of
1 people found the
following answer helpful
-
Q: COBB EBCS FoxHound1133 years ago
-
-
0 of
0 people found the
following answer helpful
A: you bet, Cobb has maps that are specific for this EBCS as well as a turboback exhaust. You can download it directly from their site here: https://www.cobbtuning.com/maps/2002-2003-subaru-impreza-wrx-stage-2-ebcs-map
Rick C. @ RallySport Direct 3 years agoWas this answer helpful?
-
0 of
0 people found the
following answer helpful
-
Q: Upgraded turbo and EWG Strycn1n34 years ago
-
-
0 of
1 people found the
following answer helpful
A: This does work with an aftermarket turbo and wastegate, but it will require custom tuning, and will not work with an existing tune or OTS map.
Marcus E. @ RallySport Direct 4 years agoWas this answer helpful?
-
0 of
1 people found the
following answer helpful
-
Q: Do I need a boost controller SubieGuy34 years ago
-
-
0 of
0 people found the
following answer helpful
A: Cobb's OTS map will only work with the stock BCS, you'll only want this if you're getting pro tuned.
Marcus E. @ RallySport Direct 4 years agoWas this answer helpful?
-
0 of
0 people found the
following answer helpful
