[jmatta]

I have the 160 LN stat in my Box S, so I'm biased. This has been debated many times on this and other forums, but the bottom line is the car's coolant temp is reduced by some 20+ degrees, thereby reducing oil temps at the same time.

As for why Porsche didn't design this like the GT3s, turbos, etc?
I think the answer lies in that the typical use of a US Boxster driver is shorter trips as a daily driver vehicle. The higher temps help burn off containiments in the oil, at the cost of higher heat, oil breakdown and engine wear. JFP, Raby and Navarro have dissected these engines and know their faults and weaknesses...I trust their judgement in the "everyday" real world.

I want my engine to last a long time (I'm approaching 16k miles). I change my oil at least annually (3k miles) and use only high quality synthetic and OEM Porsche coolant.

If I were changing my water pump, it wouldn't be with some knock-off.