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What’s the peak PSI for this tune?

I just got my Ktuner v2 today and downloaded/looked through the different options. To start how do I figure out what quick adjustment to use and what they do? Also I read that there is a 19.5/21 psi duel cal but the only duel cal I see is the 23/19.5 am I missing something? Also is it...

The down/up combo is the same across SI/reg correct? Also are all parts needed for install included with combo purchase? And anyone with the catless is the sound too loud for you or just beefy? I've tried watching a few videos but I can't tell from the videos how aggressive the sound is.