The Akrapovic is actually hydroformed stainless headers and mid pipe , with titanium (or carbon ) skinned muffler . It is a very good pipe on the Gen 2 and the modified up to date for Gen 3 imho will be the same great exhaust .
Well I disagree to some extent to that statement in regards to Suzuki . Generally because Yoshimura Japan made the best performing pipes for Suzuki for many years . The full titanium cyclone exhaust for the (early oil cooled models to later water cooled ) GSXR series , being a great example . Of course not exactly off the shelf , but you could obtain it through Suzuki . This series pipe was also made in stainless , but a little less trick design overall . There was a mild steel variant marketed under cyclone name with no header canisters , that was actually very good performing as well that were sold by Yoshimura USA .
Nowadays , the Yoshimura US division has many different makes of Japanese bikes in its line up , this has been the change , originating back 20 + years to move away from Suzuki only lines .
Now the very best titanium Yoshimura pipes were still Japanese made , BUT the best for Suzuki still , possibly . Still very good , but top tier manufacturer are more HP even nowadays . If you consider other factors , the lightness and material / construction quality , and also HP , certainly right up there at the top .
As for the Suzuki Hayabusa , well a few great examples of performance pipe instantly come to mind , and a couple of brands are still coveted by myself .
The first being the Akrapovic full titanium exhaust , for Gen 1 and limited time for Gen 2 , not exactly sure but think both 4-2-1 configuration . They are very light and well designed proven HP exhausts , still made now in stainless , at least for Gen 2 .
The other very desired exhausts , being the full ti Japanese Yoshimura for Gen 1 , and the 2 full titanium race pipe systems a twin muffler 4-2-1-2 and single muffler 4-2-1 made by Yoshimura Japan . They have discontinued the 4-2-1 last time I checked though , a chance possibly both systems , and the Gen 1 is rarer still .
I know of two people lucky enough to own an example of both brands
@Kiwi Rider and
@Dai. . They may see this and give us some details of performance and pics etc. , think Dai might even have 2 systems in pocession , one on his 220bhp monster !!