just wondering if it's common for 25mm Ecotec manifold insulator's to discolour? After a few months it looks like it's been soaked in oil. So I'm just wondering if it's common or I possibly have deeper issues Jason March 04, 2024 09:53 There would be no problems with the insulator. If its soaked in oil you may have PCV issues or something related. Related articles What is the difference between MACE PERFORMANCE CPR6 INTAKE MANIFOLD FOR HOLDEN CALAIS VE ALLOYTEC LY7 3.6L V6 and the stock manifold? What is the difference between 25mm manifold insulator to suit VS-VT and VX-VY Ecotec? From where I can get the material for the Manifold Insulator/Plenum Spacer? Comments 0 comments Please sign in to leave a comment.
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