i am thinking about shortening my standard cans by apprx 3to 4 ins cutting down to allow end caps to be put back in place and allowing the use of the factory mountings as still to look standard but apprx 3to4 ins shorter . can you please tell me if this is possible as to not affect fuelling or smooth running of the engine etc/etc this is mainly for sound reasons more than anything else . also i have been told that the fuelling can be adjusted from the clock pod , please can you tell me how to do this if you know. kind regards darren stephens .