Hi mate,
ive recently fitted a carbonio cai to my 1.8 t and i did need to use the ignition amplifier module. I removed it from the airbox and mounted it in the engine bay.In the instructions for the cai it said remove the plugs from the module and zip tie them out the way because you wont need them,so i did that!!! Then the car didn't start. So yea i think you will find you will need that module mate. I must say after fitting the cai about 10 days ago my MAF sensor has now started playing up.