screw/clamp on exhaust tips

[Racerbvd]

When I bought my 2500 Suburban , in 2004 or 2005, while going through some stuff at my warehouse, I noticed a Black tip from a friends 944 Turbo “S” . For chits and giggles, l slid it onto the exhaust pipe meaning to add a set screw, but never got around to it. Literally,close to 20 years later,still there.

[wilnj]

Originally Posted by masraum

Yeah, I was thinking this type.

Downside to these is that they crimp the tubes together so if you need to make a change later, there will be cutting required.

[DWBOX2000]

Now looking at the muffler, I want the tips a little wider and higher than stock. Now I thought I needed extenders but from the muffler to where I want them to extend out is less than 6”. If I get tips, can a shop weld right to the muffler without extenders.
Also, will a shop sort of shape the pipe to fit somewhat flush against the muffler. Looking at the attached picture, I think the muffler tips should as mentioned, higher and a tiny bit wider.

[DWBOX2000]

I’m thinking take tips up to lip on the muffler, not the bumper cut out.
Please advise. If this is impossible, I might as well not take off what I have.