The real 273 HP exhaust sound

single exhaust > dual exhaust

---lighter weight
---simpler
---cheaper
---less surface area on the inside of the pipe (same flow area, 2.5" single flows better than 2" duals even though area of the pipe opening(s) is nearly identical)
---sounds better, smoother, throatier:iconbigg:
---total sleeper effect
---packaging
the list goes on......