So, I just got my new pacesetter long tube headers installed with a true dual custom exhaust and it hard mounted to the frame. I noticed while driving 70-80mph and if accelerate between those speeds I get a really bad vibration as its coming from the exhaust. Should the exhaust be vibrating like this? this will be my 3rd trip back to the exhaust shop to try to get it fixed right again, i think i am going to tell them to do away with the hard mounting setup as I hate the vibration that comes with it. Has anyone else ever had this problem with a hard mounted exhaust setup?