What's the best method for removing cats?

[beaglebriar]

End nippers like these help a lot with opening the crimp. https://www.lowes.com/pd/IRWIN-End-...sTOIHn9OCAHEI7DnMWBoCFl8QAvD_BwE&gclsrc=aw.ds

 

[Nutball]

I thought about uncrimping it. Looks as painful as digging the cat out. Hopefully I can secure a source for the catless 352 muffler. It should even fit the cs400.