this may sound really dumb.. here goes.. i have a K2 600, i know i can do bolt-on.. but for me to be able to have a slip-on, i have to cut the pipe..?? is it really like that? coz when i checked out my pipe it looks like that there's been some welding done so i don't know if that's stock.. coz i used to have a 96 yzf600 and there's a cut already (stock) so you can just slip it on.. so i guess my question is, is it really one piece from header to the can or the previous owner welded it? thanks!