not sure either, i knew i posted something else when i was drunk. Sorry about that, but at the same time, i was being honest a little bit. I have looked at a V12 vantage and they do have duel 2 inch, maybe 2.25 inch pipes (keep in mind how good those cars sound). More to the point, a Top Fuel dragster uses a 2.75 inch pipe for each 1000hp it produces (7500-8000hp, 8 pipes)
Large pipes honestly don't sound good, feel free to get some nice headers, stainless mandrel exhaust, etc, but large pipes really are just being dumb for the sake of fitting into misguided pop culture.
Car looks nice though!