hey guys first time impreza owner and also my first ever turbo car, so I would just like some help/advice on my 06 wrx
1. Been told I can't just switch my car off after driving as I need to cool the turbo down first
2. Been told they have a smart alternator, what does that mean
3. On a standard engine is it best to keep the standard bov
4. How do I know what model I have as after market parts say fits gda gdb
any other advice would be great