suprchargedlex

hey guys, im new to the board, im getting a lexus is200 sport, all the stuff, sat nav, 'aero kit', but seeing as i am going from a honda civic type-r (197bhp), to an is200 (150ish bhp), the horsepower is lacking in the lexus. I was wondering what engine modifications are available to me, and would they effect the lexus warranty? Cheers guys suprchargedlex