The tranny should be fine, just get the transgo installed, and I'd invest in a higher stall torque converter, and you should be fine. Many people run S/Cs on stock auto and T-5s will little to no problems, it's only when you do package mods, such as H/C/I and S/C that you'll run into problems, but for just one or the other you should be OK. Oh, don't forget to get that thing tuned after the install, that's the key to not killing your car.
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