My Pacifica is an 07, (2007 being the only year with the dual exhaust's) and I'm noticing an abnormally loud exhaust note, however, it sounds good. I think the muffler's may be rusted. The other issue is a slight leak in the manifold connecting to the rest of the exhaust. Is it an expensive repair? My exhaust flange bolts are stripped and rusted off, too. Has anybody else dealt with this on 07 Pacifica's? Such a pain!!