⭕ I purchsed this motor to put into my 1999 C4 996, but sold it for a 2006 Cayman S. Then, I was going to put the 3.8 into the Cayman, but money has become an issue and I need to go a different direction. You can still get a 2 year warrenty out of the engine. I assume the warrenty starts once the engine is installed, but you would have to check with your Installer/Tuner/Porsche dealer. The engine has never been used, it was only prepped to be put in, but I backed out and it was put back into the crate.