yeah,
the mustangs have a problem with mainly the passenger side exhaust manifold. I begins to make noise on accel incessently, almost like an engine ping. I thought about doing the repair myself but it enden up being three cracks instead of just one. 35 bucks for the welding, 150 for labor... all that because of one little scrape on a driveway. Not sure where all the crack were but one was near or on the weld.
Well I'm not sure where they cracked but a week after buying my V6 used the ticking was drving me crazy. Yeah the manifolds were cracked. Seems to be a problem with V6s so I'm told.