So I took the plunge and picked up a used upper intake. I have done some porting in the past, and have all the tools, so I figured why not after reading all the hype. This is basically a clean-up exercise. Not much material to remove just flashing from manufacturing. So I can't expect much gains from doing this. Maybe somewhere in the mid to top end range. Also looking for a lower so I can match the ports where the two meet and polish it and clean up the bumps. Of cause a tune helps at some point.
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