Flowmaster, are they really that, tinny??

Flowmaster exhausts, are they really that tinny? I'm looking into buying my set up soon TTI for headers and I'm not 100% sure on the muffler system yet. Any pointers welcome........
I was thinking Borla.
HP gain isn't what I'm after just wanting this engine to breath well, also get performance I guess but it's not to important as you'll get performance from any set up.
This is what I was going to get for my 70 Challenger:
TTI Headers: 1-7/8'' Primaries to 3" collectors, 2-1/2 for the rest of the system.
Sound good?!?

I was thinking Borla.


This is what I was going to get for my 70 Challenger:
TTI Headers: 1-7/8'' Primaries to 3" collectors, 2-1/2 for the rest of the system.


