first hey hi and welcome second to the cheap tranny stuff. trans cooler $50 and the shift kit from smallcar.com also $50. the cooler will reduce heat for longer life and the kit will control firmness of shifts. harder and faster the shifts less heat is produced. my theory is when the auto tranny goes it is time for a 5sp or 6sp swap. exhuast wise u got tons of options very good mod. intake is more of a custom job that also helps after the exhuast. u could do a search on free mods and come up with some ideas. also check out some people lockers for pics of stuff they have done. im working on all my suspention parts now replacing and up grading. then paint. good luck on what you find and any questions just ask.