hmm...is very easy to discribe... you watch fast and furious?? the orange supra... when racing with black mustang almost ending of the movie....thats the sound like.....
If you are in 0.7 bar and above, you will get a very loud and clear sound of it...normally people wouldnt get this coz the price of it is more expensive than SARD "duck mouth" type...
Dear guys..
A while back while I was surfing the net for ek parts... i saw them selling CF fuel cap...
Look really nice since it is original CF and not those cheapo stickers.....