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COBB Tuning 3-Port Boost Control Solenoid - Subaru WRX/STi 2002-2007 / Forester XT 2004-2008

MODEL # COB 712750
Manufacturer Part # 712750

$115.00

24
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In stock! Ships same day
Free shipping on all orders over $200.00!


Description

The COBB 3-Port Boost Solenoid (BCS) is an excellent upgrade for modern turbocharged vehicles, enabling precise boost control in a tidy package 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.

The COBB Tuning 3-Port BCS features 1/8" low-profile barb fittings to keep the unit compact and are nickel coated for corrosion resistance. Optional 1/4" nickel plated fittings are also available separately. Viton spools and seals are used throughout for long life and lubricated with Dow Corning silicone grease. The manual override is sealed with an O-ring, the wiring harness is sealed to the casing using a waterproof grommet and the solenoid wires are ultrasonically welded to the coil, making the device waterproof and safe to wash. The BCS is rated to operate up to 120psi.

COBB Tuning has made the COBB 3-Port BCS installation as simple as possible. It mounts in the stock location and plugs directly into the stock wiring harness, making the physical install and electrical connection as simple as possible. The BCS comes with a custom aluminum mounting bracket, stainless steel hardware, boost-line to complete all connections and zip-ties to route the boost-line neatly through the engine bay. Installation Instructions are provided, are easy to understand, and provide routing instructions for both internal and external wastegate configurations.
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RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.

Specifications


Brand: COBB Tuning
Adjustable: Yes
Color: Blue
Number of Ports: 3
OEM Replacement: Yes
QTY: 1
Tuning Required: Yes

Mfgr. Warranty: 1 Year
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
RallySport Guarantee
WARNING: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.
  INSTALLATION INSTRUCTIONS

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Verified Purchase

Necessary in place of analog actuator.
e.s 10 days ago
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.
Comment
Verified Purchase

Love this ebcs, BUT
arjohnson81537109 3 months ago
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.
Comment
Verified Purchase

Great Supporting Mod When Ready for More HP!
06WRXDUDE 4 months ago
My Stage 2 WRX seemed to perform much smoother after switching my OTS Map from the Cobb Stage 2 over to the Cobb Stage 2 + EBCS. I noticed a smoother power band. This mod will also become very crucial when getting a ProTune in the near future. I would highly recommend. I also made an install video on my YouTube Channel: 06WRXDUDE

Comment
Verified Purchase

Lag killer in my 07WRX
MattSax07WRXTR 12 months ago
This was the best upgrade per dollar yet from Cobb. It greatly reduced turbo lag. The OTS map worked perfectly with it.
Comment

Nice little upgrade
e.s 1 year ago
Easy install. Went from Cobb STG1 to STG1+EBCS, and the powerband smoothed out a bit between 2500 and 3000 when boost starts to kick in. Was surprisingly noticeable over stock controller.
Comment

  • Q: thread pitch size?  bmxhotsauce41940 1 year ago

    Answer

    what is the NPT size ? just a standard 1/8 ? or 1/4 ? thank you


    • A: These ports should be 1/8-27 NPT.


      Chris W. 1 year ago
  • Q: 2006 WRX  Fernando C. 2 years ago

    Answer

    If I buy this and the v3 accessport and run stage 1 will I have to have it pro tuned? Or will running stage 1 be enough?


    • A: COBB Does list an EBCS map available for download on their website which would have to be used with this EBCS.


      Nick S. 2 years ago
  • Q: What map should I run?  michaelaaustin073196 2 years ago

    Answer

    I have a 2012 WRX base model which only has a magnaflow exhaust system on it. What map should I run on my Cobb v3 to get a good tune out of it or will I need a pro tune?


    • A: COBB Does not have an EBCS map for your vehicle and you would need a pro-tune.


      Nick S. 2 years ago
  • Q: Cobb solenoid  Oh_no_sti 2 years ago

    Answer

    How is this solenoid adjustable when I installed it its pushing 26 psi and hitting peak how do I adjust t ?


    • A: Being an electronic unit all adjustments would have to be made through the ECU in tuning.


      Nick S. 2 years ago
  • Q: ecbs and v1 tuner  AP 2 years ago

    Answer

    My buddy wants to sell me his AP v1 for a screamin' deal. Will the new stage 2 ECBS map be compatible with that old school unit?


    • A: This will work with a pro-tune but we could not confirm the old V1 Accessport to work with COBB's more recent OTS maps and that may be a better question for COBB.


      Nick S. 2 years ago