That was a painless install. About 45 minutes start to finish, tightened filter just enough that pressure would not push it off, so it seems fine. Took it for a brief ride, nice rumble. Now you guys have me thinking lunchbox delete. Have a friend who is a car geek and a welder who wants to do it.
My thanks to all who helped and encouraged! A worthwhile mod, but the test will come tomorrow on a road trip.
As an aside, maf housing lined up great.