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  • COBB [08 - 14 STI/WRX] Subaru Coolant Overflow Tank STI - JDMuscleOverflow Tanks / Coolant Tank and AccessoriesCOB800655
  • COBB [08 - 14 STI/WRX] Subaru Coolant Overflow Tank STI - JDMuscleOverflow Tanks / Coolant Tank and AccessoriesCOB800655
  • COBB [08 - 14 STI/WRX] Subaru Coolant Overflow Tank STI - JDMuscleOverflow Tanks / Coolant Tank and AccessoriesCOB800655
  • COBB [08 - 14 STI/WRX] Subaru Coolant Overflow Tank STI - JDMuscleOverflow Tanks / Coolant Tank and AccessoriesCOB800655
  • COBB [08 - 14 STI/WRX] Subaru Coolant Overflow Tank STI - JDMuscleOverflow Tanks / Coolant Tank and AccessoriesCOB800655

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COBB Coolant Overflow Tank - Aluminum

Fits: 08-14 WRX/STI

$32300
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COBB Tuning COBB Coolant Overflow Tank - Aluminum
Fits: 08-14 WRX/STI
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Fitment

Please Note: COBB 800655 manufacturer-confirmed fitment: 2008 Subaru Impreza STI Hatch MT USDM; 2008 Subaru Impreza WRX Hatch AT/MT and Sedan AT/MT USDM; 2009-2010 Subaru Impreza 2.5 GT Hatch/Sedan AT USDM; 2009-2014 Subaru Impreza STI Hatch/Sedan MT USDM; and 2009-2014 Subaru Impreza WRX Hatch/Sedan MT USDM. Welded aluminum 0.8 L overflow tank with relocated mounting for stock or aftermarket FMIC piping. Product is not emissions-related.
  • 2008-2014 Subaru | WRX STI
  • 2008–2014 Subaru | WRX

Description

The COBB Coolant Overflow Tank replaces the bulky factory plastic reservoir on 2008-2014 Subaru Impreza WRX and STI models with a welded aluminum tank that improves engine-bay clearance and appearance. Its relocated mounting solution works on stock vehicles and creates room for aftermarket front-mount intercooler charge piping, while the included Delrin cap, silicone adapter hose, and washer-fluid reservoir cap complete the installation.

  • Fitment: 2008-2014 Subaru Impreza WRX and STI applications; see the detailed transmission and body-style coverage below.
  • Confirmed USDM fitment includes 2008 WRX sedan/hatch AT or MT, 2008 STI hatch MT, 2009-2010 2.5 GT sedan/hatch AT, 2009-2014 WRX sedan/hatch MT, and 2009-2014 STI sedan/hatch MT.
  • Welded aluminum construction with internal and external anodizing.
  • Approximately 0.8 L capacity, similar to the OEM tank.
  • Relocated mounting solution accommodates aftermarket FMIC piping and also works on stock cars.
  • Includes a heat-resistant COBB Delrin cap, silicone adapter hose, and injection-molded washer-fluid reservoir cap.
  • Installation effort: Easy with basic tools.
  • Not an emissions-related part; suitable for use on emissions-controlled vehicles.
  • COBB product code: 800655.
  • References: COBB official product page.

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