I'm all for replacing the stock mufflers with GT500 or ROUSH units if taking the restrictor plates out of the sidepipes isn't loud enough

 

I wonder what that would do to the sound tuning that has been done with the quad system.

 

See post #21.

https://themustangsource.com/f813/bo...o-show-490566/

 

It doesn't really say how that would change the TONE of the sound when you update the muffler to something other than stock. That is what I am curious about with changing mufflers.

 

I guess we'll just have to wait and see.

 

from s197ford's previous posts on this subject it appears he's been involved or is very close to the R&D on the exhaust (check the videos he's posted on youtube). He previously stated that the exhaust is very loud with the plates removed from the side exhaust so I don't think changing the mufflers is going to be necessary. Plus I bet the whole system is tuned with those mufflers.