I tried to find some threads on this topic but I was unsuccessful. I have a 987.1 base Cayman (2.7L) that runs just fine. The engine is getting up there in miles (90k) and am considering some options for an updated motor such as upgrading to lower mileage or rebuilt motor from a Cayman S. My question is can I upgrade to a 997.2 motor from the newer generation Cayman or am i limited to the engines from the 987.1 variant? I realize the ECU needs to be part of the consideration in the swap as well. I am interested in any advice I can get from somebody that has successfully done this. Thanks.