strange noise from front of motor at around 2800 rpm

[clickman]

Those brown plastic bits look like what I and many others also find in their filters. Probably chain tensioner plastic. It'll be interesting to see what sort of condition yours are in if you replace them.

[jdiba]

That think is awesome ! LOL. Think about how much easier all our lives would be
as Boxster owners if they came with one of THOSE !