i don't know if there are some other mods on the engine.I think there is a chip tuning because when i change gears at high rpm some fire is coming out on exhaust, some black smoke(i know whats is happening bun i don't know how to tel you in English
). the car accelerates like mad is beater then other 944 i have ever drove. few months ago i smoke an m3 (2000 or 2001).All i want for the moment is bring it back to stock because the engine parts are very expensive in romania.The ex owner told me that some back yard mechanic made some modifications on the waste gate spring.Now I'm thinking to buy an custom waste gate but i don't know where i can find one.The timing belt i had to order it from UK.
......I have a lot to work