[Formula jg]

I will be replacing a blown header gasket soon and figure it's good time to try and get the mufflers tucked up tighter to the floor. My plan is to cut the tail pipe a few inches above the 90* upturn on the exit side of mufflers, then expand the upper section of the cut and slip fit the lower section (the section that has the 90*) essentially raising the exhaust (dual exhaust so same procedure for the other side).

My question is there a need for a hanger between header and tailpipe?

If yes, where and what type?

Note that my existing setup which has been has hangers using the front seat belt bolts but it creates some interior vibration which I'd like to get rid of.