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I'm on my 4th tune file and it definitely pulls harder than stock. I wanna do a 0-60 on the ScanGauge when I get a chance to see if there's any real world difference.
Did you get any numbers before you started?
I knocked almost a full second off the 0-60 times in my 2.0L car. Before the tune was just a tick over 8 seconds. After the tune, 7.2. So, yes, as long as the datalogging was done properly and OVT made the necessary re calibrations, you should see a noticeable difference.

 

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Unfortunately, I didn't have the ScanGauge at the time. Im happy with anything close to 7 seconds though, especially in this 90 degree weather.
 
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