Quote:
Originally Posted by Chuck33079
Can Extrudehone work with the composite upper manifold?
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I've always heard "No" because the compounds used will just gall up the plastic.
Frankly I'm gonna send my spare plenum + 300 bucks to Z1 and call it a win, rather than spending a lot of time and money trying to do it cheaper.
I figure if I see obvious defects on the lower, I will take it somewhere local and get it matched to the plenum, that paired with the bored TBs should get me 10hp or so at least, then I'm officially "done" on N/A mods.