2015 Sonic LT 1.8L Noob Questions

[Wilkerwilker]

I drive a 2015 1.8L Sonic. I was interested in trying to improve on the shifting and issues that I feel like every base model Sonic deals with. Could I do a BNR tune on a base model just to improve general timing and "feel"? I don't quite understand how the whole process works.

 

[SouthFLSonic]

Auto or manual? Manual it won’t change anything but auto it sure does


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[Wilkerwilker]

Automatic transmission, it's the flex fuel engine. What effect does a tune have on engine life?