Hi All, I am a new owner of a '90 348ts - I love this car!!! I just had my first track weekend (with the Porsche guys - I was the "sexy" red odd-ball of course) and could not believe how different (better) this car could be on the track than the street!!! What an excellent time. Anyway, to my question; I want to start doing little upgrades to my car to give it an edge in reliability, longevity and at the track, and I would like to know if there is an upgrade to the transmission gear oil, than what is recommended in the manual? Also, as I change parts (shocks, brake pads, etc...) and fluids, I would like to upgrade them to better than stock, any good data out there? I am not above (below??) adding another 75 HP either. Eventually, I want this car to be a streetable track car - I am bit pretty bad!! Thanks! Phil