Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 11,860
Believe it or not, exhaust systems change note as they warm up, too. When cold, even after the injector enrichment has ended, my 575M has a slight resonance at ~2500 rpm, which goes away once the exhaust is completely warm. Would probably see the same thing if you heated a piano's wires.
Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125
Every day I look around, and if nobody is shooting at me, it is a pretty good day.