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2003 6.0 butterfly valve

11590 Views 8 Replies 6 Participants Last post by  mk3drift
i have a 03 6.0 and was wondering if removing the butterfly valve has any benefit and if so does this trigger a check engine light?
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I removed mine on my '04 with no issues. I was told that it worked with the EGR system somehow to allow more flow from the EGR system.
1 - 1 of 9 Posts
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