With the 25mm plenum spacer on the Mace website it says only recomended for forced induction applications, will it still work under naturally aspirated or am I better off just getting the 12mm spacer? Jason July 10, 2023 06:48 Updated Given you have a naturally aspirated ecotec, we would recommend our 12mm plenum spacer (Part number: MI608) instead. Comments 0 comments Please sign in to leave a comment.
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