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Firwin removable and reusable insulation blankets are specially designed to fit around manifolds, turbochargers, elbows, “Y” adaptors, pipe sections, flexes and fittings. Our insulating blankets are fitted and laced together using special stainless steel wire. Other fastening methods are available upon request.

Listed below are some of the more popular models for which we have existing design patterns. Note that this list is not exhaustive, as we are adding models on a constant basis. If you cannot find the specific model you are looking for, please contact us directly.
GM Engine Insulation
Unit of Measure
Items GM Engine Insulation
FGM-4.3-05Z
GM Vortec 4.3L Gas; Complete Blanket Set
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FHAT-004Z
4M31; Complete Blanket Set
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FGM-5.7-07Z
GM Vortec 5.7L Gas; Complete Blanket Set
GM Engine Insulation (FGM-8.1-07Z)
FGM-8.1-07Z
GM Vortec 8.1L Gas; Complete Blanket Set
Make N/A GM
Model N/A 4.3L N/A 4M31 N/A GM Vortec 5.7 L N/A GM Vortec 8.1L