gday lads, not much of a poster but keen to get more involved anyway, as the title describes, read a few different posts and word of mouth that seem to conflict regarding an exhaust upgrade. I recenlty purchased an XR6T and lookin at gettin around 260-270kw at the wheels, planning on flash tune, injectors, acuator, CAI (I should be able to get it done this weekend) and maybe an catback exhaust and should acheieve what I want. I dont want the exhaust for the note but rather performance gain (and a sexy twin tip ;D) so just curious to find if its worth doing and if its good bang for you buck upgrade what brand of cat should I be lookin for? etc. thanks fellas