I'm picking up a used s and I'm trying to figure out whether or not I should install the new upgraded tensioner... It doesn't seem be making any noise but I was wondering it would just be proactive to do it.

Never mind I figured it out.

 

Your sig suggests you have an R50, what did you get and what kind of miles are on it?

 

I also have a r50. It's a r56 s 2007 with 70 k miles on it.

 

You can kindly ask the dealer to pull up the service history of the car and see when the timing chain assembly and/or tensioner was replaced. I would bet a '07 would have already had it done at least once by now.