anybody run this slip on?how does it perform?did you have to rejet?any info would be great!!!

 

it did alright on my machine, however, it is far to loud for the mounds where i ride it, and they {the dnr} won't let me in with it on. so now i am looking to sell it

 

I have one on my 400EX. I think it performs just fine, but it is really LOUD, I mean really LOUD. But I like it that way. It gets attention when I open it up. A friend of mine has the WB pipe on his '01 400EX, and our bikes are identical except he has the stock CDI box, but they run really close to each other. It just depends on who gets the better hole shot. If you don't want it loud, better get another pipe.