Originally Posted by Norm Peterson

The fact that your heads are aluminum has very little bearing how on everything downstream should be supported.

Stock exhausts may have joints that permit a little rotation without leaking, which to some extent alleviates the expansion and engine rotation loads seen by the piping and its supports.

The braided flex hose that you see on most (maybe all?) transverse-engine FWD cars is another solution. Support immediately behind it/them.


Norm