Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 11,859
Some manufacturers use the same exhaust system with and without bypass valves. The Novitec Supersport system I had on my car for a while (very loud) had, per muffler can, one straight through pipe and one that traveled a bit further. Without valves, the outboard pipe had nothing flowing through it and all the flow went through the staight pipe. Hence loud. You could actually look straight through the muffler from the tailpipe. Adding valves to force the flow through the long path when the valves were closed would have been relatively easy.
I assumed the NGT was similar, but obviously not. Should have looked.
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.