fz1 airbox

I've been using this forum unregistered for a few weeks and learning everything I can about my new (to me!) 2006 FZ1. Thanks for all of the help. I didn't like the burbling and popping on decel and you guys helped me. I designed a plug that is a permanent fix for the airbox hole and is...

I have been reading a lot about the airbox mod and finally tried it with a k&n filter. Read that no pc is neccessary. Major decrease in top end power, like it just cuts out!! Low end is fine and runs fine, but something not right on the top end for sure. Ordered a replacement lower airbox and...