Iam sorry people but all the goodies in the classic impreza and they put a bright switch in.Well bugger me if you cant see the clock normally what chance with the brake lights in front....Well after wondering and pondering what to do with it i thought ha ha .I now use the useless bright swith to turn on my intercooler spray kit and it works great...

 

Turn the bright switch on at the same time as the heated rear windscreen whilst in reverse and this will unleash an extra hidden 25bhp from the engine management.

 

that's weird mine only unleashed the hidden bhp if stereo tuned into classic fm