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Leftover metal protruding into the collector the under O2 sensor bungs
I finally got my ARH headers today and noticed some leftover metal protruding into the collectors. Is this going to affect the flow and should I do something about it?
Engine masters tested the effects of dents on a set of headers using a dyno. They did back to back testing putting bigger and larger dents in the headers and found no difference. The slag won’t affect anything.
if u get bored check out the episode.
*although u could probably get a dremel in there and knock it down if it makes u feel better.