Routing exhaust over frame…

[AllGoNoShow]

I’m in the middle of a custom exhaust install and was originally just going to put the mufflers under the middle of the bed on my 68 C10, but It’s going to be a giant PITA with my suspension and fuel tank to get it out the back. I was looking at it last night and then thought about going over top of frame after exiting the cut outs in the trailing arm crossmember then putting mufflers outside of the frame (then exiting exhaust out front of rear tires). Attached picture is what I was thinking (just a mock-up). Anyone run there exhaust like this and any pros or cons? Seems like there will be a few 90 degree bends this way, but not sure if that’s even an issue.
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