Or,
You can always just get Tubular manifolds that are suitable for being wrapped.
Just like the ones that were on it for 2 years, without cracking.
They are still in use now with some 20,000 miles plus of use.
(ones that will not invalidate a 'warranty'.
![Wink ;)](http://www.slroc.co.uk/forum/Smileys/default/wink.gif)
when heat wrapped.)
george
.