You do not "need" to flash after installation of the basic JRSC SVT kit. It uses a PowerCard developed by Jackson as it's tuning device. You may want to have the car tuned but it is not required. The BBK requires the ECM be sent to Ford Racing for their flash, which is part of the kit.Anyone know if you have to flash the ECU after install of the supercharger? Or is it ok? Its NOT the BBK version.