Hi

I have an IS200 Sports Luxury, and the only mechanical mods are Tein Super Street suspension and Dunlop DZ03 semi-slick tyres. I was just wondering what the optimal setup is for this chassis to allow maximum longitudinal and lateral g. I bought a PerformanceBox GPS data logger recently, and although I haven't taken the car to the track or skidpad yet, I can brake at 1.09g and corner at 1g during normal street driving. Is this close to the limit of what the chassis can handle? What does a stock standard IS200 corner and brake at? Thanks.