I have a 2003 VY Commodore Ecotec V6 sedan. Would adding a manifold insulator increase the performance further? Siya October 08, 2023 19:16 Updated Yes, it will increase the performance. Related articles Are the cold air intake legal for it has no bottom on it? Was looking on your site at the manifold insulators and was wondering what's the difference from VS/VT to VX/VY insulators? Comments 0 comments Please sign in to leave a comment.
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