the first thing i wanna point out is that intake is not a mugen anything. mugen makes honda parts. mugen is to honda like amg is to mercedes. so that is just a sticker.
that being said. i will say yes, you will see noticable gains with that intake. i put a cheap $55 ebay intake on my car that looked almost exactly like that and i'm very pleased with it. i say go for it. but lose the honda mugen sticker. i painted my tube high temp flat black cuz i was chrome when i got it.
heres a pic of the intake
http://www.villagephotos.com/pubbrow...lected=1006780