Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 11,868
Stef- The 4-1 headers will make for much better scavenging than a 4-2-1, just like they do for V-12s with 6-1 instead of OEM two 3-2-1 headers. You also get a much higher pitched sound with each exhaust pulse extracting the next and there is a pretty significant increase in hp. The GTO went from the 599's 3-2-1 to 6-1, and most of that beautiful sound comes from the header design, elimination of precats, and use of single large 200 series cats on each side. Same principles apply to the flat crank V-8s.
Not the same as a 90 degree crank V-8, where a cross pipe can increase hp from the 4 V-2 layout. Our V-8s are two inline 4s on the same crank and one of the big advantages is the exhaust pulses are self extracting.
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.