SKU: 57416196679
ms3 gold box boost control

ms3 gold box boost control GrimmSpeed MazdaSpeed3 Boost Control Solenoid

Sale price$26.72 Regular price$29.69
Save 10%

Pay in installments of $7.42 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

ms3 gold box boost control GrimmSpeed MazdaSpeed3 Boost Control SolenoidThe MOST COMPLETE AND BEST PERFORMING MazdaSpeed BCS Ever Built, Period. Get into Boost Much Quicker (Flows 10% more than competition) Plug and Play into OEM Harness (no splicing wire like other BCS!) Factory Fit for clean install Works Safely with Factory Mazda ECU (custom coil to match ECU) Nickel Plated Fittings as this is Built To Last (not the easily breakable plastic fittings!) Easy to Install and Very Easy to Tune The Only Direct Bolt IN BCS

The  MOST COMPLETE AND BEST PERFORMING MazdaSpeed BCS Ever Built, Period.

  • Get into Boost Much Quicker
    (Flows 10% more than competition)

  • Plug and Play into OEM Harness
    (no splicing wire like other BCS!)

  • Factory Fit for clean install

  • Works Safely with Factory Mazda ECU
    (custom coil to match ECU)

  • Nickel Plated Fittings as this is Built To Last
    (not the easily breakable plastic fittings!)

  • Easy to Install and Very Easy to Tune

  • The Only Direct Bolt-IN BCS for MS3


The GrimmSpeed™ MazdaSpeed3 Boost Control Solenoid is designed to work with your factory computer (requires tuning). It will not reduce the life of your factory computer because it is designed to draw the same ammount of power as the factory BCS but flows better and reacts faster. It plugs in and requires no splicing or soldering of resistors. With the included bracket you can bolt it in, plug in the connector, and start tuning for fast boost response, increased boost pressure and free up lots of power. Planning on returning the car to stock? Just reverse installation.

Why run an Electronic BCS over a Manual Boost Controller?
A MBC allows you to run higher than stock boost levels by preventing the wastegate from opening at its rated pressure. It does a great job at this but if boost is available under the MBC setting it will give you that full boost. So for instance, you set your MBC to 18psi because from 3000-6000rpm thats what you want. But then say you get detonation with 18psi when you are at 7000rpm unless you are below 16psi. With a MBC, you do not have this control so you are forced to run 16psi through the entire rev range. With an electronic boost controller you could run 18psi from 3000-6000 and 16psi at 7000rpm because you can tune the boost map in the ECU which will allow you to run the maximum amount of boost at every given rpm. This gives you more power throughout the range and better control. Revolutionizing the boost solenoid market, we have created model specific install brackets that allow you to directly fit our Boost Solenoid into your MS3 for a factory fit. No more Zip-tying! We give you the factory fitment you have been waiting for.

Staying with the OEM fitment theme, our Boost Solenoid uses a Mazda style wiring harness so you can simply unplug your OEM solenoid and plug ours in. No more cutting the oem wiring and crimping wires together!

Also new to the Mazda boost solenoid market, we have used ultra low-profile hose fittings to keep the unit as small and clean as possible. The hose fittings are nickel plated brass so you don't have to worry about them snapping off like the plastic hose fittings!

More Features:

  • Users can use AN fittings with the solenoid.
  • MAC Valve has completely custom made the valve for us(only MAC valve on the market to be custom made for automotive tuning use).
  • Specifically designed by GrimmSpeed™ to work safely with the factory Mazda ECU (requires tuning) and to reliably handle the vibrations and temperatures of your engine bay!
  • Direct bolt in mounting bracket and hardware included!
  • Faster response and greater flow than any other valve out there. (by more than 10%!)
  • Nickel plated brass fittings. (unlike the competitors failure prone plastic fittings)

Easy for your shop or tuner to tune!(Engine tune is required!)

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: 57416196679

Discover Niche Categories That Outsell ms3 gold box boost control

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 24 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Shianne Edwards
Massapequa, US
★★★★★ 1
Poor quality
Format: Board book, Format: Board book
So bummed . Love these books. Put up for Christmas and the binder of the book is completely torn. Didn’t see till I wrapped.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2025
D
Verified Purchase
derrick charles
Alexandria, US
★★★★★ 5
A must read addition to the Slaughterverse.
Format: Paperback
The Book of Slaughter reveals the secret history of the Slaughterverse while giving you a glimpse of horrors yet to come. The story follows Maxine Slaughter as she leaves behind her white mask in order to restart the House of Slaughter's Black Masks. As she studies and trains for this task, she uncovers the forgotten lore of the Order of St. George and a plot that will shape its future. Volume 2 contains information on the Order of St. George's mask factions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 27, 2025
C
Verified Purchase
Carlos Wynter Melo
Massapequa, US
★★★★★ 5
La Biblioteca de la Orden de Saint George
Format: Paperback
Cómic necesario para entender Something is killing the children. Me encantó el modo en que relacionaran la trama con las bibliotecas qué reúnen los libros de Orden de Saint George.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 4, 2025
D
Dallas Johnson
Cuba, US
★★★★★ 5
A Lot Deeper Than the Previous
Format: Paperback
This volume delved way further than the last! The lore and context this gives to the whole universe is well worth it and gives lots to think about! Reveals how well planned and intricate this universe really is! Highest of recommends if you are into this franchise!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 1, 2025
S
Verified Purchase
Sam
Pawtucket, US
★★★★★ 2
Padding?
Format: Paperback
The book is a good quality, and the i like contents... besides the fact fully one third of the book is just the storyboard and script, with some sketches. Im used to covers and other supplemental materials taking up a few pages at the end, but that's ridiculous. Its either somewhat scummy padding or a complete mismatch in what i want and alot of other folks want i guess.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026

recommand products