Post by
fyarf »
https://forums.nicoclub.com/fyarf-u259099.html
Mon Feb 15, 2016 11:03 am
The stock tips are part of the stock muffler, and actually have a fake sheathing over them to make them appear bigger. I would say 3" or smaller for the sheathing (tops) and 2.25" or smaller for the actual tips inside the sheathing.
Remember, mine are double walled. the OD is 4". I would say the ID of mine are about stock size, and my tips are 2.25" inlet. If they were single walled, 4" might look huge, but I haven't seen any like that in person so i don't know.