Cat converter in Exhaust pipe ZX12R

Guys and gals,
I have got a 2006 ZX12R, just fitted a Yoshi bolt on muffler. Noticed the catalytic converter in the end of the header pipe where the muffler bolts on.
Anyone removed the converter, if so what is the end result. Any difference to performance etc. and does the bike need to be remapped or a power commander fitted.
Your thoughts,
Thanks

Hi Mate,

I took mine out with a hacksaw about a year or so ago when I fitted a yoshi bolt on. it will just pop out when you break the tack welds around the outside. It made no difference to the bike, in fact it opened the bike up a tad, or at least the pipe did. Feel free to pull it out.

Cheers Hoff

Hi Mate,

I took mine out with a hacksaw about a year or so ago when I fitted a yoshi bolt on. it will just pop out when you break the tack welds around the outside. It made no difference to the bike, in fact it opened the bike up a tad, or at least the pipe did. Feel free to pull it out.

Cheers Hoff

Really.?.. so who's was the one I took out then...

Thanks, For the info, doesn't appear to be to hard to remove. I''ll give it a test on the weekend away from the Gestapo.