Hey guys, I was riding my friends yz450f '04 today. Was not doing any thing stupid.. no wrecks no rediculous jumps.. Just messing around in a flat field, We rode all around the trails and hills today day. So I'm riding along in 4th about mid throttle and all the sudden I notice the tone of the bike starts changing so I pull in the clutch and rev it a little to see if its okay, Then I look down and the header is in the process of falling off the bike (engines at idle, clutchs pulled in) I quickly hit the kill switch and slowed the bike down. I ran back to grab the header and see what happien, at first I thought the bolts just came loose from the header mount and it had popped off. Well this happien... The weld around the pipe failed, This exhaust has been on the bike ruffly 1 year. Bike has not been raced and has never been "crashed". So I'm wondering, Does pro circuit offer any kind of warranty on there pipe welds failing? Thanks all!