So last night I finally got my Flopro muffler out of the truck. She is 100% sippy straw and sounds like a shop vacuum. Anyway I love it. Although the truck was way way to quiet to begin with. The muffler wasn't bad. I just got out of my 08 Duramax with a lot done to her. Was diamond eye down pipe from turbo into 4" MBRP system into dual 6" mitre stacks. I loved it but I have to say it got old fast. Wouldn't have took them out but towign and long trips were loud haha. So even this 5" straight it isn't that bad. The Ford cab alone does a lot of noise canceling which is nice so windows up is great. All down you just here a nice loud whistle ont he right side whatever it is bouncing off of. Overall I say pretty quiet since it doesnt wrap and pop loud. Hopefully get the truck actually up to temp later and give her hell and really hear it!
So fi you were on the fence of taking it out... go for it!
Happy to be back in a