The Mishimoto Silicone Ancillary Hose Kit for Subaru WRX/WRX STI is made from a combination of high-grade silicone and heat-resistant embedded fibers for a high-quality replacement for your OEM rubber hoses. Available in black, blue or red, Mishimoto silicone hoses retain OEM fitment while providing increased pressure tolerance for the ultimate upgrade in performance and style. Will fit 2.5L turbo motors only.

The Bottom Expansion Tank Hose Will Not Fit 04-05 STI Models, This is Due to the Port Size Being too Large for the Hose.


  • Direct fit for 2004–2007 Subaru WRX and WRX STI
  • Max temperature of 330°F
  • Made of high grade silicone and heat-resistant embedded fibers
  • Efficiently reduces heat
  • Increases pressure tolerance
  • OEM replacement fit
  • Available in black, blue, or red
  • Mishimoto Lifetime Warranty

 WARNING: Cancer and Reproductive Harm -



Mishimoto 04-07 Subaru STI / 06-07 WRX Silicone Ancillary Hoses

  • Sale
  • Regular price $143.95