Wow interesting review. With downpipes, MOST exhaust are bound to rasp though. So I don't think you can fault Vanguard at that. I agree that it could be louder although for me, it's plenty loud enough.
I def think that Vanguards sound much better on an N55 than an N54.
Austin Yellow M4 15' (704 whp / 672 lb/tq) -> 800+???
AWE Non-Res Exhaust | BMS Intake | AWE ColdFront | EoS Intercooler | ER Downpipes | ER Chargepipes | JB4 | Ice Tank | Custom SS Methanol | Swift Springs | TPG/DSS 1200hp Axles | Dodson Sportsman DCT Clutch | PURE Stage ? Ti's | Port Injection | Built Motor (Pauter Rods, Wiseco Pistons, Port & Polish)