Update to an old post with a extended road test on both these exhausts.
I have the Hawk on my '06 XB12X and the Drummer on my '09 XB12XT. BOTH have some years and milage on them.
The Hawk is approx. two years old with 15000 miles on it. It's definitely louder and more HDish (potato, potato, potato)/chop shop sounding. The finish is fading and peeling in spots. But, still very much structurally sound and functional. Tuning it with EcmSpy/MetaLogViewer produced nice power with very little deceleration popping. I do wish they'd removed the silly active exhaust baffling. Every time its activated, it squeaks like rusty door hinges.
Bottom line, the pipe only slightly increases the appeal and performance of the uly. But, I'm an HD guy first; So.....
The Drummer is approx. 6-7 years old with 30,000 miles of service. It's not as loud (still louder than oem) and has more of an engineered/race bike sound). The finish has held the test of time and no peeling is observed. It is also very much structurally sound and functional. The silly active exhaust has been removed, so no rusty door hinge sounds here! Tuning it with EcmSpy/MetaLogViewer produced nice power with almost nonexistent deceleration popping. The aluminum end cap still polishes nicely with the embossed (Drummer and checkard race flag) emblem adds a nice upgraded styling.
Bottom line, the pipe greatly increases the appeal/styling with nicely felt performance gains on the uly.
For all said, I'll be looking to replace the Hawk for a Drummer muffler in the near future....