The Aeroflow Performance external wastegate bag / blanket range provides high quality material selection, design, and construction, whilst at an affordable price. These wastegate bags are designed to help minimize the heat soak transfer between the main body and actuator body of the wastegate. This will allow a more stable operation of the wastegate valve allowing consistent performance of the turbocharger. The added benefit from these bags will prevent the heat from damaging components surrounding the external wastegates such as wiring and hoses. Will suit Aeroflow External Wastegates. May also suit other brands.