Posted for "Greenbacks, Ltd." <N4ZQ@comcast.net>:

 Rob,
 
 I think you'll find no need to give the tailpipes additional support.  When
they are secured to the exhaust manifolds forward and clamped  together at the
rear, makes for a pretty rigid setup. I used #26 Adel  clamps, slightly
modified and with the rubber bushings removed.
 
 The tailpipes were a classic hand job...or should I say elbow grease  job...
 
 1. Start with 3M 400 grit dry. When you think it looks perfect and is  ready
for polish, go to step 2.
 2. Continue with 3M 600 grit dry. When you think it looks perfect and  is
ready for polish, go to step 3.
 3. Continue with Norton 13 micron dry. When you think it looks  perfect and
is ready for polish, go to step 4.
 4. Continue with Norton 8 micron dry. When you've just about driven yourself
insane, go to step 5.
 5. Using PPG DRX10 Final Buffing Compound and your buffer set to 1400  rpm,
go nuts....
 
 From start to finish, each pipe took about 2hrs, takes a lot longer
 for epoxy to cure!