I blew out my stock tranny last summer when the car was supercharged. It now has an NVG T550 transmission with Torsen LSD in it. The tranny was only put in the Achieva SCX autocross cars and is supposably good to over 500whp... although there are no definative numbers so I guess we will see
I'm also running an ACT 4 puck solid hub racing clutch. Surprisingly this clutch although aggressive and has some chatter I find it to fairly decent for the street. The axles are my main concern as they are stock and have been known to fail in higher hp cars... There are some aftermarket ones out there i'll be looking into next season