2012 Duramax Deleted, Now Exhaust Hiss

[LukeBright]

Im sure this has been posted in the past and has been answered, but i can't figure out how to find it.

i have a 2012 gmc duramax lml, i just deleted and have the efi live, autocal.

i have it straight piped 4 inch, back to a afe 4x6x18.5 tip.

now it hiss's to much at idling. (well idling is only time it bothers me).

when its a rumble it sounds really good.

how do i tune my efi live to tune it out? i am brand new to efi live. seriously just got it in the mail and did the delete tune, then put it in street.

i have downloaded the tuner tool from online, but have no idea how to use it, or where to begin modifying it to change the turbo vanes and whatever else needs to be modified for the rumble at idle instead of the F-16.

new to the forum, and new to efi live!
thanks guys!

[minytrker]

Your not going to be able to make any changes with an autocal, only the person you bought the autocal can make changes to your tune.