You sure it's exhaust not a leaking valve cover? Also, although it could be an issue with manifold leaking, I wonder if maybe it's another joint in the exhaust system.
You just had service II done. Did they do anything around the exhaust? O2 sensors maybe...maybe your front exhaust bracket is loose and put pressure on a fitting?
dmax on the radio--answering all your car questions as best I can!
watsonnwatson.com every Wednesday at 9 p.m. NYC time. Call in! (661) 449-9340 Click "Watch and Chat"
Please 'friend' me!