We are moving to a 160* for various reasons. #1 is as the factory is a 180, the step to 170 was only a minor change. As these cars are making more and more power it benefits them even more to have a cooler starting point. #2. We worked with a Tier 1 OEM supplier to develop this new thermostat to ensure the highest quality and performance available. We also wanted a thermostat that is a true direct replacement, many thermostats we sold in the past were not a true direct fit. While they worked in certain applications they sometimes needed unique gaskets, spacers, or other adapters to work properly. We want our customers to have a trouble free experience, and part of this is ensuring the items we sell can use OEM designed and approved gaskets. Imagine being on a road trip and having a "unique" gasket fail. Where do you get one from? With our new thermostats those application issues are gone, so now you could get a production gasket and be back on the road quickly.
I realize that is a rare possibility, but it's just an insight into why we make changes on product offerings. We are always looking for ways to improve our offerings, and better service our customer's needs. Pushing the envelope means developing new and better products. This is what we do every day, and what makes us unique. We are always finding new ways to make our offerings better than before, and this is just one of those items that we developed for that.