I spent last week or a good part of it weilding new sills into my uk tt and had to pull the carpet back as not to set the car alight, today fitting the carpet back properley i cant spell so anyway, i found yet another box of tricks only this one has some srt of setting like a small slit for a screw driver for setting up boost i think. cas that one hidden away and wired into the ecu yet the other one is more of an on and off hi/ lo controller sort of things is this a norm set up for hks set up. the plot thickens whos put what on this car as i dont know cas bought it of a trader.

thanks