It probably decreases the noise from the DI, and probably keeps what it covers cleaner. I doubt it traps much heat, but it would be easy to compare temps with/without.
Dumb question number 2. LOL sound tube? what is that? I await your reply.I saw dumb question, and I'm like YES, I'm ready with all sorts of dumb answers
Mine is hanging on my garage wall - I pulled it when I removed my sound tube, once I had it off, (and realized the hassle in getting it from under the strut bar), I said, to hell with this, it's now wall art.
I didn't really do a good before vs. after, I hear all sorts of rumbling and sewing machines sounds and I LOVE it. The underside definitely has what looks to be some sound dampening foam.
FWIW, there's a kit from Ford that covers the injectors/etc., specifically for use without the OEM cover, I figure if they sell that, there's no issue running without it.
So I watched a bunch of videos and basically people take this off and notice no difference and say well it does nothing? so then why take it off? There is a bunch of videos on how to take it off but next to none on the result. most say well it didn't change anything. the one guy who did a in cabin video says ahhh listen to how quiet... and all you can hear is engine. then in comment he admits he couldn't tell any difference with or without it. so why bother even taking it off? oh any why is it a pair of underwear when there is only one?
