I'm finally ready to tune my 2.7 EcoBoost and I'm torn between 5 Star Tuning and Livernois Motorsports. Both seem to have great reputations, but I'm not sure which route to go. Livernois requires their proprietary tuner, while 5 Star uses SCT/Bully Dog devices. What are the pros and cons of each from your experience?
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Livernois makes great stuff, don't get me wrong, their tunes are super safe and reliable. But I prefer the flexibility of 5 Star too. You can get multiple tunes (tow, daily, performance) and switch them out easily depending on what you're doing that weekend.