GrimmSpeed Electronic 3-Port Boost Control Solenoid Kit Subaru WRX 2015-2021 FA20

Rated 5.0 out of 5
Based on 53 reviews
grm057041
863 In stock
Boost Control Solenoids

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Part #: 057041

The advantages of a 3-port boost control system(ebcs) 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.

An elegantly engineered solution.

  • Custom Machined Adapter - Makes use of the factory inlet recirculation port, instead of blocking it off
  • Black Anodized Finish - Protects the assembly from corrosion in an extremely demanding environment
  • 1/4in Barbed Fittings - Matches the factory turbo and wastegate hose size
  • 3-Port Solenoid - Proprietary internal modifications prepare the solenoid for extreme conditions below the vehicle
  • Plug-n-Play Wiring Connector - Plugs directly into the factory wiring harness with no modification required
  • Compact Design - No need to mount the solenoid elsewhere in the engine bay, increasing complexity and hose length

RETURNS POLICY

Any returns for an exchange or refund will be allowed within 30 days from the receipt of your order and must be authorized prior to shipping with an RMA Number (Return Merchandise Authorization). To receive your return instructions and RMA# please use our online form under Returns and Exchanges! Once you receive your return instructions please ship out the item at your earliest convenience and provide the tracking number to your customer service rep. The customer will be responsible for all shipping fees. Before shipping your product back please make sure you package it up exactly how you received it and in all of its original packaging. All items must be in brand new and resalable condition. Once the item is received it will be inspected and a credit will be issued accordingly. All returns are subject to a 15% restocking fee. Any returns received without an RMA# will be charged a restocking fee and any shipping fees associated with the return. An item that does not ship directly from IIR's warehouse is considered a "special order" item and no returns will be authorized.

average rating 5.0 out of 5
Based on 53 reviews
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53 Reviews
Reviewed by Emilio
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Would recommend

Super quick and easy install a lot easier than it seems

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Reviewed by 1 L.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Grimmspeed ebcs

Great product just remember you 100% need a tune with this on the 15+ wrx or your peak boost will cap at 13.8 or so.

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Reviewed by Cameron B.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

2017 Subaru wrx BCS

Worked great. Lines worked perfect. Box came in very good shape. Overall very good product. And is working great for me!

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Reviewed by Bob F.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Works as intended!

Installed this along side my flex fuel kit, and it really helped my tuner dial in the boost levels. Highly recommend being one of your first purchases if you are considering a pro-tune.

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Reviewed by Brandon J., from United States
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Beast

Amazing holds boost good for catless set ups

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GrimmSpeed Electronic 3-Port Boost Control Solenoid Kit Subaru WRX 2015-2021 FA20
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