big gun exhaust problems?

i have a 01 yz 426 and installed a big gun full system exhaust and i have had problems with the exhaust header touching my radiator. Has anyone eles had this problem? Any way to fix it?

I've got the same setup on my 01. It was on the bike when I bought it so I can't comment on any hints installing it. Looking at my setup, I've got very little clearance. Maybe 3mm at most.

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