OK I've got a 2017 ST with 144,000 miles and I've been running a Dizzy tune for over 3 years and 100,000 miles, it started having a miss during full throttle pull's over 3000 rpm's and it's getting worse so I did a little reading and put 4 new NGK coil packs on yesterday hoping it was a bad coil but that didn't help? The motor was replaced under warranty at 52,000 miles and it's ran flawless ever since. I'm hoping its not the turbo going out but not sure? Is there a way I can do some data logging to determan whats going on? Thanks in advance. COOP