I own a 2002 VTX 1800 C, 2003 Goldwing, 2007 Suzuki M109, and a 2007 Triumph Rocket III. All are stock with the exception of aftermarket pipes on the 109, intake and pipes on the VTX, and TORs on the R3 (still w/ cat.). The R3 is clearly faster than the rest of them.
P.S. - Never cared about...