A couple of these would look sweet on the Strom. Stolen from another site:
From the OOFISHAL Tailgunner website. . . .
Increased Performance with Proprietary Variable Back Pressure®.
The Old Tradition:
Until now, straight pipes have allowed for an overall decrease in exhaust back pressure. This has provided better top end performance and a big bike sound. But often at the cost of poor low and mid range effectiveness and an earsplitting crack.
The Tailgunner® Solution:
Tailgunner® rotary cannon exhaust uses turbine induced Proprietary Variable Back Pressure. With an increase of back pressure at low rpm’s and reduced back pressure at high rpm's you get an overall increase in performance through the full power range. You also get a deep, resonant, throaty report that doesn't hurt the ear. No more sacrificing low and mid range performance for high end speed and great sound.
Dyno tested and performance proven: Dyno numbers coming soon.
Seen in action here.