I put a Area P on my street 10r that i was very happy with.

It came with the catalytic converter sub pipe which is hollow of course. And then it went to one single carbon fiber 2" muffler. Love the sound and it rips.

BUT on my track bike I was trying to save money, so I took the stock exhaust and drilled out the rivets on the end, gutted the outside can, and then cut off about 2".

I then made my own (but you an buy a Vance and Hines) straight through inserts wraped with glass. It sounds good and has no baffle so its free flowing. I was even thinking of bolting back up to the street bike to see how it compares. Of course I hollowed out the cat and disconected the exhaust valve too, but thats a cheap way to go.

Check it out.
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