Intereting idea. I hadn't thought about sound. It's just plastic, though. There's nothing under it.

Maybe dust or dirt??? I suppose it could keep larger chunks from collecting on the intake maniflod.

That's a streatch, though.

I've read where they put stuff like that on the engine to make it look less like an engine. I've read it's just for looks. I guess some people don't what (or care) to know where the power comes from.

"Stubig" - '72 416.141 (U1100) Unimog
"Sassy" - '05 KLR650
"Brody" - '04 Rodeo (It's my wife's, really)
"Candy" - '02 TDI New Beetle (yes, a family of 4 fits inside)
"Twinkie" - '72 Revcon 250 (converting from Olds 455 to 6.5L Diesel)