ive just brought a 2004 st170. well pleased with it. with the comfort pack

couple of questions id like to ask.

1. traction control button. does anyone actually use it, i never know wether to switch it on or off????

2. im gna keep everything standard near enough. i still own a rs turbo s2 so dont wana mess about with loads of engine work etc etc.

it has an induction kit. but i want to get a nice exhaust, which is best for the st170. just a powerflow or???????

any other little tweeks people do with there st170????