So I was driving and saw a sweet blue 997 Cab going the other way....and it sounded AMAZING....more like a Lambo or Fcar than a Porsche...high pitched and exotic...not loud, just exotic...thats the word that comes to mind....what exhaust was this? If I wasnt bringing lunch home I would have flipped a U and chased him down to ask him....Any ideas?

 

I heard a Tubi and a AWE that make the sound you describe.