What are the thoughts of those in the know regarding the need to remap a modern fuel injected bike once a slip on/aftermarket pipe has been fitted? Some say the fuel injection system will automatically adjust to the correct air/fuel mixture but I'm not so sure. Both myself with the AT as well as a mate with his 1190 have recently fitted slip on pipes and not convinced there's not more to be done, also the pros and cons of de catting?