definitly turn the boost controller off! Even better do this... find the detonation sensor connection and unplug it. That will automatically lock the ecu into safety boost mode which will make the car run about as fast as an NA (but still safe for the car). This way your parent's wont realize how fast of a car this is LOL. Then after you get it just plug that connection back up and reset the ecu and the Z will be back at full power.