Ive been reding alot about this too and get lots of mixed opinions.
![](./images/smilies/spacer.gif)
One thing that makes me think that its a good idea.
![](./images/smilies/spacer.gif)
.
![](./images/smilies/spacer.gif)
.
![](./images/smilies/spacer.gif)
is that i recently see under the bonnet of the current btcc honda civic in which every pipe including the airbox was wrapped in gold heat reflective tape.
![](./images/smilies/spacer.gif)