What is the size of the bolts come with MACE 12mm Performance Manifold Insulator kit to suit Holden Ecotec L36 3.8L V6 (95-00)? Michael July 04, 2023 08:21 Updated With the exception of the 4 M6 screws, all of the hardware that we supply in the bolt packs of our kits need to be custom made to be able to install the insulator. Related articles What Size Belt Is Required For My Pulley Running The Standard Balancer? What's the difference between your 12mm plenum spacer and 25mm plenum spacer? And what is the difference between the 12mm and 25mm manifold insulators as well? Comments 0 comments Please sign in to leave a comment.
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