Which tunes are best?

Wow that is a horrible experience, I’ll take note.
My 18 GT1 loved the JB4 but My 23 GT2 would not idle with the JB4 with fuel it. I needed up with the EK1 with Stage1 and stage 2 tunes depending on my gas availability
 
The JB4 is the most popular tuner for the Kia Stinger for a reason. Follow the link to learn more!
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