So I have a 2021 gmc sierra elevation with the 5.3 I have put a outlaw series cat back duel exhaust it sounds great I have auto stop turned off and I'm buying the shut off for it to put in the dash so I do not have to press it all the time but I have it off and when I am comming to a stop sign or slowing down it seems to cut the noise to my exhaust and it then when I come to a stop seems to build the pressure to alow it to make noise again I was not sure if there is a tune for this or something I need to do or get but if I stuck with that I mean I'll just live with it but if anyone has a solution to it would be greatly appreciated.
