Mishimoto's silicone turbo inlet hose for the Subaru WRX/STI is made from a combination of high-grade silicone and heat-resistant embedded fibers for a high-quality replacement for your stock hose.The Mishimoto Silicone Induction Hose is wire reinforced to prevent collapsing under pressure and features increased flow thanks to a larger internal diameter. Available in black, blue, or red, these silicone turbo inlet hoses retain stock fitment, the ultimate upgrade in performance and style.Direct fit for 2001-2007 Subaru WRX and 2004-2015 Subaru WRX STIINNER DIAMETER: 2.0" & 2.6"OUTER DIAMETER: 2.4" & 3.1"High grade silicone and heat-resistant embedded fibers feature max temp of 330°FMishimoto Lifetime Warranty