[lambobambo]

Hi, im looking to make some alterations to my car for more power, but am a little aprehensive about getting in chipped (eg Active Autowerk chip) as so often i read in the classified car ads, "never chipped" etc.
IS it a bad idea to take this route for my M3?
Also Pulleys, do other areas of the car suffer? And has anyone had any problems with either, or is it all good?!!!!!!