1)I had posted another question about what exhaust would be better for noise in the cab and I forgot to ask about how it would sound on the highway. I-65 around here goes to 70mph and I travel that at least once a week for 40 miles at a time and was wondering how the cab noise is at the speed?
Link to other thread-->https://www.f150online.com/forums/ex...ust-ideas.html

2)I was looking at the flowmaster 50 series and had a question since I've never bought an exhaust before. Should I just be getting the muffler or would the exhaust kit itself me best?

And in the picture, at the other end, does that go right after the cat?

 

You'll be fine with their kit. As long as you can score it for around $400 it will be worth it, any higher I would just buy the muffler and tips and install/fab at a shop. The 50 series is very well tamed inside and calm.

 

How much do you think that'd run instead of the kit?