Coring the stock exhaust

[TurboMonster]

I tried to core the stock hypermotard exhaust last week and it didn't go as easy I thought it would.

Here's diagram of how the exhaust works and what i did.
http://www.duccutters.com/johnson/09...xhuastCore.pdf

There's photos at the bottom of this page...
http://www.duccutters.com/BillJohnson-HyperKromo2.tpl

If anyone has any ideals on how to further core the exhaust please let me know.

[sick50ford]

here is my setup
My new exhaust