i have been looking into tuning my rx8 but i am not sure what brand to go though, any suggestions

 

Look at Versatuner or Mazdaedit.

COBB Accessport is no longer being supported.

 

There are tuning subforums on this site with tons of information:

https://www.rx8club.com/series-i-eng...ning-forum-63/

https://www.rx8club.com/series-ii-engine-tuning-164/

What do you hope to accomplish exactly? Unless you are FI that juice usually isn't worth the squeeze with this car.

 

I don't know about 04-08, but Versatune seems like the only option for 09-11 cars. The only reason I have thought of trying it eventually is to raise the rev limiter for autox. The series II cars with their shorter final drive only hit ~61 mph in 2nd.

 

Versatune and MazdaEdit both work with S2 cars.