I recently bought a 2000 9-5 2.3t. I bought it as a cheap beater, not realizing the potential the 2.3's have (I grew up around 900's. I don't know much about G.M. saabs) Eventually I would like to start builing it. I just wanted some opinions on weather I would be better off working with the 235 that it came with or if I should find a 234 to build. Also suggestions for performance mods would be appreciated. Like I said, I'm new to 9-3's/9-5's. Thanks a lot for the help.