6.6 gas exhaust

[Blkmgc]

Just wondering if anyone knows of any company making cat back exhausts for these new models yet. Haven't found any listed from the usual exhaust manufacturers. This truck needs a bit more rumble imho.

[Cowpie]

I have not looked at the new 6.6 L8T exhaust, but if is anything like the 6.0, I would just install a straight thru muffler and call it a day.    The L96 exhaust was pretty good except for the trash can muffler.  If the 6.6 L8T exhaust is similar, just replace the muffler and enjoy.  Without looking, my guess it is the same 3.5" in / 3.5" out.

Edited September 22, 2019 by Cowpie

[Blkmgc]

Looks like the same trashcan muffler that was on my 15 HD. Ill have to get under there an measure it.

[Cowpie]

If it is the same, a Magnafow 12909 muffler would be perfect.  I have that on my 2500. You can get one for under $150 at many outlets.