@rumblefish360
I’m using 2-1/2” into a Y pipe then a single 3” with a flow master super 44 turndown before the axle. I don’t like it, I think the shop did a shitty job and it’s too quiet. The Y pipe I think really quiets things down. I will later change to 3” duals with an H-pipe. But it will be difficult to do on my truck. I will need a builders kit.
There are some other pictures if you go back a few pages.