With an outer layer made from silicone impregnated fiberglass, these turbo blankets are internally insulated with high temperature calcium magnesium silicate wool, overlaid with a high temperature mesh. The PTP Subaru Turbo Blankets are designed to fit all stock Subaru WRX/STI turbochargers. They also can fit many other after market turbochargers with internal wastegates.
Subaru WRX Turbo Blanket - Heat Tolerance:
Interior Surface: