[djmtsu]

Early RX-8's had a 4 port engine for automatics, and 6 port engines for manuals.

Later models (I think starting in 06-07) all of them had 6 port engines. From what I gather (and this is just conjecture from mr and reddozen talking the other day) the auto cars also only had one oil cooler to facilitate a trans cooler.

So, we need a hell of alot more information from you.