Review on 96 04 HONDA XR400R Multi Stage Competition by Robert Dabney

I bought a used XR400 with a large bore kit and it had a stock filter from 1997. This filter is seen as an upgrade for the 400's and is almost a damn necessity for the big bore. My 25 year old bike broke down, the previous owner was so impressed with the performance increase that he offered to buy it back. It was easy to say no to him. I also ordered a high flow green filter which I will keep for myself just in case. It seems less restrictive when you need it, but this guy is probably the ticket.