Muffler options for 2.5" Mac 4-1 tube ?

[timeconsuming]

Hey guys, I currently have what I believe is an old Mac 4-1 exhaust on my 75 cb400f, and after pulling off the muffler and taking a peak inside it looks like it's seen better days.

Also I'm personally not into the megaphone look or sound, so I was thinking of pulling off the muffler and finding a replacement or some sort of simple adjustment for the sound, as I tried just removing the muffler and the sound was just a bit over the top coming straight out of a 2.5" tube.

I couldn't find many options for tubing that big, so anyone have any ideas?

 

[Clinedesign]

This stainless is from Dime City on a GS550 4 into 1 with 2.5" outlet:

It's a little loud: 8)

 

[timeconsuming]

Haha yeah I've spotted that one on DCC, but figured it would be about the same as just leaving the muffler off (and it's like $130, and despite looking well made I'm not sure I can sink that much into a muffler). Thanks for the audio though!

 

[timeconsuming]

Also: any reasons I should avoid running straight pipe with no muffler/baffles aside from the abundance of volume? I love the low sound as opposed to the tiny tinny sound coming from the current muffler, but would it cause performance problems? Might have to alter my fuel/air mixture settings, right?