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Company 23 Anti-Surge Boost Control Solenoid

Subaru Boost Controller
: Company 23
Part#: 522-525
Price: $229.95
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Patent Pending


  • 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.

Works with:     

   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:

  • 08-15 Subaru Impreza WRX STI

   Kit 525:

  • 2015 Subaru Impreza WRX

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