Paul,
That link had a really old photo- I don't update my web sites as often as I
should-

First attached photo is left side of engine with TB + plenum in the
foreground. I'm using the stock RX8 exhaust manifold temporarily, as I don't
have a real one yet. The designs you have on line won't fit the Renesis so
I'm developing my own; will share when tested.

Second photo is left side, with all cooling / oil lines in place, and a scat
hose installed to connect a cheek vent to the oil cooler plenum.  The wiring
is very messy, will neaten that up and add looms / conduits as needed. Still
working out best paths in some cases.

Engine starts & runs, but am unable to test it for very long w/o a prop or
some way to force air through the rad / oil cooler. Obviously still need a
real exhaust manifold too.

--KA