Company23 Anti-Surge Boost Control Solenoid

Company23 Anti-Surge Boost Control Solenoid

Now Only $206.96 Regular Price $229.95


Company23 LLC is an automotive engineering firm with the philosophy of providing aftermarket tools and products with quality and fitment that is often not seen in this industry. Company23 believes in the principle of using the right tool for the job. We strive to make working on your car easier and more enjoyable. By combining years of experience as mechanics with clever engineering, modern CNC equipment, and modern manufacturing methods, we can bring you the highest quality products at an affordable price. Our products are rigorously tested over and over before we bring them to market to make sure you can depend on them.


  • Game changing boost control for turbocharged Subarus utilizing patent pending electronic anti-surge technology
  • Eliminates common and annoying internal and external wastegate flutter!
  • Allows tuners to more precisely create your boost curve (increasing spool and horsepower) by not detuning your car to eliminate boost oscillation
  • The top Subaru tuners have proven the benefits of the Company23 anti-surge boost control solenoid on stage 2 cars up to 650whp track beasts!
  • As simple to tune as a basic 3-port boost control solenoid. ¬†Very tuner friendly!
  • Easy installation with included OEM quality mounting brackets and electrical connectors; "Plug and tune" for all Subaru models!
  • CNC machined and anodized 6061 aluminum housing is completely sealed for a lifetime of use
  • Boost conroller uses a custom 3-port solenoid designed by Company23 and manufactured by MAC
  • 6mm(1/4") CNC machined hose fittings

Advantages over other aftermarket 3-port boost control solenoids:

  • Eliminates wastegate flutter
  • Prevents oscillation in the boost curve
  • Makes more horsepower and torque when compared to a detuned map focused on eliminating flutter

Advantages over manual boost controllers:

  • Allows RPM/load dependent boost control
  • No need to worry about partial throttle/full boost during closed loop
  • Does not require retuning for temperature/season changes or extreme changes in elevation

Advantages over standalone electronic boost controller or standalone ECUs:

  • Retains OEM reliability and driveability
  • Is "plug and tune" easy
  • Significantly less expensive
  • Less complexity


Kit 522:

  • 02-07 Subaru Impreza WRX
  • 04-07 Subaru Impreza WRX STI
  • 04-08 Subaru Forester XT
  • 05-06 Saab 9-2X Aero

Kit 523:

  • 08-14 Subaru Impreza WRX
  • 09-13 Subaru Forester XT
  • 05-09 Subaru Legacy GT
  • 05-09 Subaru Outback XT

Kit 524:

  • 08+ Subaru Impreza WRX STI

Kit 525:

  • 15+ Subaru Impreza WRX

warning_symbolWARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to

More Information
SKU 52
Product Type Intake and Exhaust
Intake and Exhaust Turbo and Components
Brand Company23
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