transmission question

Is there a racing transmission or some modded tranny that you can replace the original with? I have a 92 max and my tranny just went out on me. Since I have to replace it anyways I was hoping to upgrade to something better. Any suggestions?

Well after jacking the max up, I found out that I actually busted the axle on the drivers side. The tranny looked ok. But since I have it up, how much would it be to add a new y-pipe or exhaust? I was thinking maybe an exhaust? Any suggestions.