I have a 2003 VY commodore ecotec V6 sedan Would adding a manifold insulator increase performance further?. Michael August 23, 2023 07:25 Updated Yes,It will. Related articles I have a 2003 VY Commodore Ecotec V6 sedan. Would adding a manifold insulator increase the performance further? I have a L67 supercharge fitted to a Mitsubishi l300 Van , the engine came out of a XU6 Commodore , would Mace's memcal be more fuel efficient than the HSV one I have? Comments 0 comments Please sign in to leave a comment.
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