turbocharged

hey i have a stock 07 VE sv6 and i wanna put twin turbo's in it but im a P plater still, how much power will my car have at the wheel with twin turbos? i originally wanted a super charger but i know i need the turbos

Was going T-trim, but seeing as countless people go from Vortech to turbo charging rather than going the same route, decided to cut out the middle man and go straight to a single turbo set up. Would a GT4088 with .70 A/R/ 1.06 A/R (my preference- earlier spool up?)be a good choice or should I go...