This topic is not discuss why one is better than the other mechanically speaking, is just somewhat for me to try to understand why would anyone who is running under 380 bhp would want to switch to a 5 speed?!?! (i just love my new rebuilded 6 speed that's all). The reason i'm asking this is because i've heard all sort of things about it and would like to know you guys opinion (like i destroyed my 6 speed and 5 speed was the only thing available and such) Also, has anyone managed to run a 6 speed from a 350z on the s15? i know that mazworx was working on it and there is actually a video, but for some reason i cannot find any more info on that.