I purchased a CPO 2005 911 S cab with low mileage and an exhaust rattle that seems to occur around 2500 rpm and half throttle. Doesn't seem to happen if I drive it in sport mode. Dealer sprayed some lube on the exhaust butterfly valve - made it a little less common, but still there. I do not have PSE, just sport chrono.
I read about a recall on the early 2005 exhausts, but cannot find the recall section on this site (if there is one - only found the TSB section but no recall info). Also, searched the forums but can not find any info, so I am sorry if this is a repeat question.