I have a 2007 with the 4.6. I'm getting a new exhaust when my custom tunes come in. My question is how loud would: 2 14 inch (9in core) Magnaflow high flow cats, a Magnaflow X pipe, and 2 14x5in straight through "tube" mufflers be? The pipe diameter is 2.25 inches.

I'm mainly wanting to know how loud it will be on the inside. I don't mind a little drone but i don't want it to be unbearable. I know people have video of similar set-ups but of the outside and you cant tell from cheap camera videos.

Also what am i looking at on install on this set up?

Any and all input would be greatly appreciated!