i want to get a few more tenths out of my car without being obvoius. i want to stay away from a intercooler and headers because it scares people away. i have the 1.9 rockers so a cam won't work. i guess the next thing is trans components. so what helps the most a LSD or a Stall? plus i have the stock 97 trans with over 100,000 miles on it. it seems to be doing fine its holding up with mid to low 13's and 1.9 60's and nitto drag radials. but would either of these parts destroy my trans or would they help my trans?