[manders]

I've seen silicon vacuum hoses available and wondered if anyone had used them and what difference they've made?

Cheers

 

[mark e]

Using the Search facility at the top of the page search will reveal lots of topics that have discussed this previously

In essence, there's no performance gain per se (and maybe even some problems if you use it for the MAP sensor) except the possible erradication of leaks from old perished rubber hoses.