I've given some thought to putting an insulating wrap on the exhaust
system  of my van to help alleviate some of the heat that soaks the
engine area and to help dampen noise.

 I know there is a trade off when this is done. Heat held in the exhaust
will burn out the pipes sooner. But that heat escaping through the pipes
cooks everything back there, especially  in the summer time, and it
seeps into the vehicle interior as well, when the engine shuts down.

Has anyone had any experience - positive or negative - with applying and
insulating wrap to the pips??

Regards,

John Rodgers
88 GL Driver