GetaDomTune Cylinder 4 Chamber Cooling System Stainless with 5/8 T

2004-2021 Subaru STI / 2002-2014 WRX

Was: $79.00
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Keep your cool with the Getadomtune Cylinder 4 Chamber Cooling System on your 15-21 Subaru STI


GETaDOMTUNE Cylinder 4 Chamber Cooling System

Cylinder 4 Cooling Highlights:

  • Increases Coolant Flow to Left Hand Head
  • Reduces Detonation and EGTs
  • Improves Cooling
  • High-Grade Silicone Hose
  • Stainless Steel Clamps


Keep your cool, and install the Getadomtune Cylinder 4 Chamber Cooling System. This patent-pending product questions why this was left off from the factory, as it is a simple and cost-effective mod. This kit was designed to increase cooling to the left-hand head, which decreases hot spots and EGTs. This will keep your engine happy and consistent with the additional cooling.

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  1. A very happy cyl4

    By Ian K May 5, 2022

    I've had this mod on my JDM STI for more than three months and I have not experienced any leaks or cooling issues. The quality is excellent and fitment is perfect. I strongly recommend getting this mod for your Subaru EJ engine.

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