I have an 05 z400 with a K&N airfilter and powerlid with a 160 MJ. just looking to see what kind of exhausts other people have used with this bike. trying to get a little more power without being too loud. another z i ride with just put on a powecore 4 with a header and its not to bad. i was looking at the factory 4.1 with powerbomb header any advice?

 

i love the full yoshi systems on the z400s they sound awesome and give good power also

 

I had an 03 z400 with a white bros. slip on. I liked it. Wasn't too loud, had a good sound. I had a yoshi on my last predator and I liked the sound better, but it was much louder than the white bros. I have an HMF full exhaust on my new predator and it is much like my yoshi was, loud with a good sound. As for price, HMF may be the least expensive out there, but don't let that fool you. They are very good quality pipes.