i bought my bike recently. this is the exhaust that was on it.
it does not have much of back pressure.
it sounds good in the high rpms but it has a flat spot around 5k.
i believe that it either has the stock jets or ones that are not big enough.
(http://i188.photobucket.com/albums/z54/gs500e_2007/bike2001-1.jpg)
(http://i188.photobucket.com/albums/z54/gs500e_2007/bike2004.jpg)
Cobra F1-S.
Generally a tinny ass sounding, super thin wall and crappy aluminum POS ...
Cool.
Srinath.
that looks like my exhaust exept I polished mine. It is a bassani same look same material and same clip on system