Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 11,847
Dave- The 575M, the 612, and the 599 all have precats in the headers, 4 in total, inside the four 3-1 exhaust manifolds. Ferrari was able to eliminate the precats in the 599 GTO with improved catalyst technology and went to two 6-1 headers feeding into two large catalysts. Fabio's V12 headers are similar to what the 599 GTO has, and they result in a much superior sound and a very useful increase in hp with no effect on the emissions system.
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.