If I remove the cat from my muffler or buy a aftermarket muffler will I need to do a tune?
It sounds a little throatier but not very much
I would do it again on my next ride
It's not difficult. Other than needing a welder.
Make sure you mark the elbow before cutting it off.
If you want to take the time just grind on the weld instead of cutting. The elbow is inserted into the muffler and just makes it easier to weld back on