I've heard that before about the cross over giving more power so thats why I plugged it off with a peice of of aluminum beer can as an experiment and couldnt tell the difference.
Honestly these things must be realy choked up some where, maybe its the intake manafold. I gotta say I was really dissapointed with the performance the first time I rode it but I went ahead and bought it anyway because I had lusted for one so long. Its sure not like putting two xr600's together thats for sure, course got this one right after my 950 super enduro was stolen so that was a real step down in performance.
Anything above couch speed is dangerous