Hiwowsport Turbo Heat Shield Turbocharger Blanket Wrap Spring for Subaru WRX Gold High quality and durability. can hold up to 2500 degree F. Outerside made of pulvarised lava rock and innerside made of fiberglass Protect and prolong the car engine components and give a boost in horsepower.It helps the turbo spool faster. Stainless steel lacing wire fastening system, with 2 springs fastener. Fit for subaru turbine housing turbo charger.Keep crucial engine components protected from the heat of your turbo.