We have the p-port RX8 engine running at Mazdatrix with the welded in SS
intake runner tube. No dyno runs yet. Hopefully next week.
Thankfully no water leaks around the p-port tubes. The tubes are also
bonded in with JB Weld.

I never thought this would work. Namely welding the stainless tubes directly
to the RX8 rotor housing steel liner but it is working far far better than
I expected. It is also far easier to do than I expected. A good welder
can do it in 15 minutes.

Depending on how much  we are down on power due to the side exhaust ports
we might try building building an RX8 motor with p-port exhaust using the
same welding techniques.