I recently inherited a stock 97 turbo with 175k miles on it. I live in California and drive the car at times to work or just for fun on the weekends. Since getting the car, I've rebuilt the turbos to GT28 with ball bearings (so I could keep the original housings and not cause smog check problems), had a valve job, and replaced the fuel injectors. Is it worth it to replace the EMS? What are the pros and cons? I was thinking of the AEM Infinity 6 EMS for the car to help control the big boost in HP. I also added a AEM Tru Boost gauge to the car (but the controller is not hooked up right now, just the gauge itself). Also, would changing out the EMS bypass the speed limiter?