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Upgrade your Corvette's exhaust system with our premium Exhaust Heat Riser Spacer, available in both 2" and 2.5" options. This spacer is designed to enhance exhaust flow by replacing the traditional heat riser valve found in Corvettes from 1957 to 1974. The 2" version, originally used on fuel-injected models, effectively eliminates the factory heat riser and seals to the exhaust manifold (GM Part #3750067).
The 2.5" version is for 1962-1974 Corvettes, including those with big-block engines. It matches high-performance models that used an unrestricted spacer without the butterfly valve, optimizing exhaust flow for improved performance (GM Part #322113).
Both versions include the necessary gasket for installation.
2 LBS