after getting my xenons installed at a shop today. the guys working there told my friend (who owns a mustang gt) that his nephew has his own shop with a dyno and everything where he can mess around with his computer and add a bunch of horsepower and make the car run faster and more efficiently. But the guy doesnt know if they can do this to the rx-8 because they usually work with fords, is this a myth or is that really possible? (for either the mustang OR my 8)... And if it is, does this void my original warranty??

its possible. PM mazdamaniac and ask to buy the cobb accessport. you will need it to reflash the pcm.

Here is the thread

http://www.rx8club.com/showthread.php?t=140117

so it is possible... well if this guy is able to do it on my rx-8 how much should i pay him?? i would just like a ballpark so i dont get ripped off, and if i have this guy do it i dont need to buy anything for the car do i?

so it is possible... well if this guy is able to do it on my rx-8 how much should i pay him?? i would just like a ballpark so i dont get ripped off, and if i have this guy do it i dont need to buy anything for the car do i?

I take it you didn't read any of the information that the people that posted above gave you?

i did read it, i read the links within the links, and all the code stuff i didnt really understand much of

i read pretty much all of it, but i just dont understand it. this guy just was just telling me that i could increase performance, optimize gas mileage and increase horsepower. i still have yet to learn about the computer side of my car, sorry about that. i just want to know if this can actually happen and if this guy can do it, and how much i should be charged for it.

Forget understanding it.
Those links explain the questions you are asking.
If you still don't get it, then the answer to your question is "no".

dont do it pistons are different then rotors.

thanks