Hello, I tried searching but didn't find the answer. I have an 04 yz450 and I pancaked the header yesterday. I'm going to try the freeze method once it's off but it's pretty flat so I'm also hunting for a replacement. Does anyone know what years of yz will fit the 04? Also, will the yz250f and 450 cross fit? I doubt it but thought I'd ask. I'm kinda broke so I'm looking for a cheap replacement alternative. thanks.