I just got a HMF comp slip on pipe for my '01 400EX. I got it partially installed and the mounts are not lining up. I have to pull up a bit to get it lined up. I could just bolt it up but it seems to be putting pressure on the head pipe. Should i just bolt it up? I'm figuring once i get it fired up the heat might bend the header into place. 25020d1438551775-noob-exaust-question-14385517735891438701782.jpg20150802_160948.jpg