i have just installed headers, and today i had 2 super 40s put on with straight pipes and turn downs before the rear axle. And after spending all that money on the truck it now sounds like crap. There is a really bad ticking noise which is coming out of out of the pipes, it speeds up with revs and sounds really bad when you give it some gas and the revs go down. I did a little bit of searching i read that it could be the gaskets. Does this sound right? it didnt do this untill i put the stuff on. Could i have damaged something by driving to the muffler shop with open headers? Or should i just get some good gaskets?