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The GFB inner wastegate spring for E38/44 is a Go Fast Bits replacement rated at 5 psi and specified as the inner spring for E38 and E44-style wastegate assemblies. The product description and features identify it as a 5 psi inner spring intended to match that wastegate application. Select this spring when the listed inner spring rating and fitment are required.
GFB E38/44 5psi Wastegate Spring (Inner)
