New Here... Tranny Or Exhaust?

[sleepydsm]

Hey everyone! I'm from MN and I'm a youngster with a black '92 GSX. I've got lofty goals for my car, but only recently have I had money to mod it. So far I've done the free mods, K&N, boost gauge, and I'm running just the stock downpipe. I need an exhaust, but my tranny seems to be crapping out (crunchy 2nd). Do I get my Apex'i 3-3.3" turbo-back exhaust, throw in some BG syncroshift, and hope for the best? Or do I get a TRE double syncro 2nd, replace any worn parts, throw in some BG, and know my tranny will be somewhat more reliable? (PS... I rebuilt the tranny once when I bought the car. Stupid me drag raced a lil, used Amsoil synthetic gear lube w/ GL-5 rating (whoops, I didn't know!), and a bolt fell out of the shift lever bracket, all of which helped to screw up my tranny). Any suggestions for a clueless newb??? Thanks!
-Kevin Swalchick