Completely agree with the before mentioned vertical support. Need something or you have potential for exhaust to bump up against lower flange of firewall and lower skin.
I tend to like very short hose lengths in short supports. Less hose the more deflection control you get. The shorter the overall support lengths the better the load path since none of these, no matter the orientation, are carrying true column load.
I found I get the Adel clamps that are clamped to the engine mounts tend to slide when the supports intersect the tube at angles less than 45 degrees. Always slides out, never slides in. My solution has been, if I can’t change the support to better angle, is use another Adel clamp right next to it to get protection against it sliding.
Over the 900+ hours I have, I would guess I have replaced clamps maybe 50 times and rearrange the support configuration maybe 6-8 times. YMMV. I have finally gotten something a little more permanent to work over all these iteration. You will find the exhaust hangers will be a check item every time the cowl comes off. I actually check every preflight by getting under airplane and wiggling the pipe to check if degrees of freedom of pipe has changed.
One last tip. I hate Adel clamps. I used to scar them right at the bend from the fastener hole to the loop getting them closed using pliers. That scar causes them to crack fairly quickly with all the vibration they see. I bought the
Adel plies from Spruce and use the
stainless Adel clamps now and no longer get the Adel breaks I used to get.