79,000k on my SS manual and there is a strange drive train rattle at 2600rpm. You can hear it really well in 4th gear when I am slowing down, dropping rpm and hold it at 2600rpm. I know my 5 year warranty is coming up soon, but any ideas? It seems to be coming from the passenger side of the engine bay.

 

First thought is : Flex pipe.

 

Ditto, and it's just about the rpm range where they'll really buzz and rattle.

 

Any possible fixes or potential issues?

 

Go to the top of this page and type "flex pipe" into the SEARCH box. You'll find millions of words on the subject.

 

And also check out the heat shield on the cat.

 

I can't find much about turbo version, does it have similar issues with the flexpipe?

 

They all got one! Different size for the SS, I think.