Where to get pre bent exhaust pipes and any suggestions on how to swage them to fit over mufflers?

Kern Dog said
I like to do everything that I can here instead of relying on outside vendors or shops.
I saw these:

https://www.flowmastermufflers.com/...r_components/direct_fit_pipe_kits/parts/15826
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Does anyone here have any experience with these? I'm looking to swap the exhaust in my 67 Dart when I do the engine swap. It will have headers, an H pipe, Flowmaster mufflers and 2 1/2" pipes so these seem to be a logical choice.
Free shipping too.
The goal is to piece together a good exhaust system here at home without going to a muffler shop. I also need to know if there is a way to swage pipes to slip one into the other for a more positive connection.
Thanks!

Gotta say Kerndog, I am likeminded but hopefully, you've got access to a lift and oxyacetylene.

If not, this is a miserable job to do on your back.

Trying to maneuver pipes around to get clearance, especially around the gas tank , hang mufflers and making sure nothing hits can be exasperating.

I'm definitely on the TTi express here. Their product fits great and also is available with an X-pipe which I prefer.

Cheers!