The stock radiator hose may not be able to withstand the high heat generation that aftermarket and performance modifications tend to produce. Mishimoto's Silicon Radiator Hose kit for 2005 to 2006 GT Mustangs remedy some of the shortfalls of the stock hose system.
Mishimoto uses a dual-layer design for each of its hoses that combines high grade silicon fibers with a DuPont Nomex lining that's rated up to 330 degrees Fahrenheit and has higher pressure tolerances than the stock system.
Mishimoto's hoses are a direct OEM replacement that perfectly matches your Mustang's stock radiator or Mishimoto's Performance Radiator and come with Mishimoto's limited lifetime warranty.