SKU: 910010042

GrimmSpeed Boost Control Solenoid - Subaru 06-07 WRX/04-07 STi (057002)

Sale price$126.00 Regular price$140.00
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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4

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Description

GrimmSpeed Boost Control Solenoid - Subaru 06-07 WRX/04-07 STi (057002)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

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.

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.

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.

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.

Features:

  • 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

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 910010042

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4.3 ★★★★★
Based on 7 reviews
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Verified Purchase
David Zielinski
Battle Creek, US
★★★★★ 5
Great Value for the Money!
Size: 10.5, Color: Black/White
Pleasantly surprised at this price point! Comfy, sturdy and a way better sole the Sketchers! Amazon products in general have been really good quality at affordable prices!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
G
Verified Purchase
Gaile Kausch
Port Orchard, US
★★★★★ 1
Size not as expected
Size: 11.5, Color: Grey
Ordered same size as I always do. Way too large. Size listed was off by a long shot
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Reviewed in the United States on May 22, 2026
P
Professor's opinion
Lowell, US
★★★★★ 4
Lightweight and True to Size — Best for Casual Use
Size: 9.5, Color: Navy, Size: 9.5, Color: Navy
It is nice to see the Amazon Essentials brand expand from household essentials to apparel and shoes. I ordered the Amazon Essentials Men's Lightweight Knit Running Sneakers. The product is made in Vietnam and comes in a shoe box, which is nice. I've noticed that quite often, inexpensive shoes are delivered just in a plastic bag. The sneakers are ready to use and have no odors from glue, organic solvents, etc., which is common nowadays. I wear a size 9W or 9.5. These sneakers are 9.5 and feel like a typical 9.5 size, without surprises. The product is advertised as lightweight, and it is true. Each shoe weighs below 0.6 lb (265 grams). Inside is soft memory foam; the shoes sit on the foot well, snug enough and comfortable, and are easy to put on and take off. They seem like a good fit for spring and summer as casual footwear or for light gym use. The sole is simple and not designed for performance or high-impact activities. Overall, a solid, reasonably priced, comfortable everyday option, though not intended for serious running or training.
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Reviewed in the United States on April 15, 2026
A
AmberR
West Palm Beach, US
★★★★★ 5
Budget buy while being as comfy and stylish as an expensive brand!
Size: 9.5, Color: Navy, Size: 9.5, Color: Navy
My 14 year old had been running his own business since he was 12. He does lawn care and snow removal. His go to shoes when it's too hot for his work boots has always been off brand hey d*de style ones which are terrible for that kind of work as they just don't have the ankle support. He's also had some Orthopedic arch supports custom made for him through the DR in the last year that he needs to use in whatever shoes he's wearing at the time. So I've been on the search for a simple pair of slip on shoes that he could wear while working long hours around our community. He's sent me this picture tonight before heading out. He said "I didn't feel like putting my arch supports in and these are so comfy that I don't even notice I don't have them!" They are sharp looking shoes that really stand out as of they were A high end pair! It's great that they can be an every day style or could be more of a sport shoe as they have the support and padding for both options. In our case they likely be green with in a day or two and it'll be interesting to see how well they wipe off between his work days. I can update this review once he's worn them a bit more. For now they have been perfect for versatility, size was true to size (I did order 1/2 size up, but only did that because he's growing so fast!) and they are definitely a great fit to a budget!!!!
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Reviewed in the United States on May 8, 2026
B
Verified Purchase
BamaGirl
Los Angeles, US
★★★★★ 5
Good purchase.
Size: Medium, Color: Black, Size: Medium, Color: Black
My daughter needed some black sweaters for work at Starbucks. Came across these and snatched one. Price was really good, it is soft, black color is vivid and did not fade after washing. Durable and well-made. Fits as expected...she wanted something loose on her to wear on cold nights over her shirt. Keeps her warm. It came pretty quickly. The material is soft and its comfortable to wear. Nice basic sweatshirt to have in your closet! Pleased with purchase 😊 hopefully this helps!! Oh we intentionally bought bigger for an oversized fit.
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Reviewed in the United States on January 9, 2026

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