Crashed my 2004 wr450 supermoto yesterday on the street and it cracked the header. What should I replace it with? I read the yzf header is better? Is that a direct replacement, fits right up or anything need to be changed? Certain years? Jetting? Should I just get an oem one for the wr? And where's a good place to order...no dealers near me. I want something that requires the least amount of work because I need it back on the road ASAP so please help! Thanks!