P1 Launch Control.... (anti-lag, Subaru, Impreza)

First launch of my new P1... Currently running circa 350bhp. Engine Spec: Owen Developments VF34, 550 Injectors, RCM headers Full Exhaust System, JDM Spec C 6 Speed Short Ratio Gearbox, Exedy Clutch, RCM Super Lightweight Flywheel, RCM Induction Kit, Simtek Ecu (Mapped by Bob Rawl), 255 External Fuel Pump, Walbro Intank Fuel Pump, RCM Swirl Pot, RCM Oil Catch Tank, Running Dumpvalve-less, HDI Front Mount Intercooler Other Mods: BC Coilovers with Full Fast Road Alignment Setup, W