So I contacted cobb and inquired about using one in my 2010 rx8 however they said they stopped support for the rx8. Their website states that it is up to 08 modles so my question would be what would my best route be for modding my ecu. Is the one through mazdamaniac useable regardless of year or are there another brand's that are good as well, thanks in advance

 

No Cobb will work on the S2 (09+) Rx-8. Your only real option is Mazdaedit (search). Read the stickies.