Wanted to know what you all thought of the new ERT supercharger available for the E30 M3. They claim it produces 290+ HP.
I am in the process of purchasing an M3, and the first performance mod I intend to do is to convert the engine to a 2.5L with Turner Motorsports EVO perf. kit. I will follow with exhaust, intake, etc. What are the benefits of having a naturally aspirated, but modified S23 engine as opposed to a supercharged, and modified S23? I know for sure that I want to add the EVO kit and other mods, but Supercharger? Please share any knowledge you have about the subject (especially those of you who may own the ERT supercharger).