I've heard the Miata 5-speed transmisson bolts up to the 4-port Renesis. I've also heard the 5-speed 3rd Gen Rx-7 tranny bolts up too. Any confirmations on these rumors? If they are true I plan on having a 5-speed Rx-8

 

Don't bother with that, just buy the 5-speed transmission from the european rx8's like i have on my 4port, then you will be sure it fits.

 

Your ecu won't like it.

 

You'd probably be better off swapping in the 5 speed manual like they said or...trading it in on a new 6 spd auto, or 6spd manual or--which is probably the most cost effective option--supercharger or turbocharge.

 

Just trade it in on a new 6spd AT.

 

And the ECU to match. unless the TCM can be removed from the system.
Not certain how the TCM interacts with the ECU just yet.

I stated awhile ago that I would have a 4port w/ a 5 spd and a SC and Zoom44 said that it wouldn't be possible to move an Euro ECU that had a 5 spd attached into an American car that has an auto.

Still want to prove him wrong

EasyE1
That would be nice but they don't come in yellow!

 

PAINT IT YELLOW

 

There you go again shaking your butt.