For that kind of coin it better come with a power increase guarantee.
While it is a nice looking can.
Its designed for the zx6 ninja.
My educated (albeit limited) guess is the werkes can will have little to no effect on a cb550 engine.
Because; zx6 revs twice as high, where shorter exhaust pipes are a benefit.
Also; many slip-ons are designed as aesthetic parts these days. The header pipes and catalytic converters are where the real magic happens. Any meaniful exhaust paths are hard at work well before the smoke comes out the tail pipe.
A slip on for a modern bike offers users a better looking, better sounding, and lighter weight alternative to stock exhausts. Not necessarily a better performing bike.
There is good reason to keep a longer exhaust pipe on a cb550. While its okay to shorten the pipes a little, too short will cause these motors to suffer at low rpm (more than they do already) I got real lucky when meshing my yoshi can to the mac exhaust system. Mac had already done the legwork to determine a good length and size of tubing for a stock motor. Had I trimmed the mid pipe any shorter, who knows where the power peak of the engine would have shifted to.
There are a few brilliant pieces of literature regarding exhaust system design and fabrication floating about the internet. I encourage everyone refitting an exhaust to do some readin. It's very good info to know. If you adapt the knowledge to a custom motorcycle exhaust, the result will be music to everyones ears!
