Well I bought a 04 Z400 and i am going to order a Yoshimura TRS System with Carbon Fiber Muffler but i need an airfilter to go with it, I know from cars you open up the Exhaust and you should also open the intake other wise its a waste. I live in Western Ma. any help you all can offer will be prime


Thanks
Big D

 

http://www.prodesignracing.com/

Stick with foam! Don't trust your precious engine to a K&N..........

You can also take out the screen that's in your intake tract.