LeoVince exhaust...
Yes, I've had the exhaust on for quite a while.
My 400 has the LeoVince exhaust without the inner baffle, a modified air
box to allow more intake air volume, a K&N hi-flow filter element, and
and the Malossi Variator.
My 400 runs very good, a whole lot better than stock. On low-end,
mid-range, and high-end, all phases of performance improved greatly.
Go for it.....
Gib