IAG Coolant Expansion Tank Black

2002-2007 Subaru WRX / STI

Ships for free in the 48 states

SKU: IAG-ENG-5301BKWe price match!

In Stock

Ships today if ordered in
1 hrs 3 mins

Over time and mileage, your factory coolant expansion tank could develop a pressure crack due to expansion because of multiple heat cycles. Additionally, it's not the most pleasing component to look at. The IAG Performance replacement features thick aluminum construction and will provide a more streamlined race-inspired look in the engine bay. Note that this unit will relocate your stock overflow tank to the passenger side front strut tower brace to create additional space for those of you who have a related turbo setup, and need space for the piping. 
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IAG Coolant Expansion Tank Black


  • 1/8" thick aluminum construction
  • -6AN coolant turbo return fitting
  • -8AN coolant return fitting
  • -8AN drain outlet fitting
  • .25" barb fitting for the overflow
  • Powder-coated black with the IAG logo
  • Includes new hardware for the installation



  • Will NOT work with the OEM hoses or the COBB airbox







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