aye up gaz ! got me 100 posts now !! asymetric thingy means its a half system , one big pipe minus cat , an one standard (smaller dia ) pipe rear cylinder ! but you get the loud bit which is basically the same , can that is . full system has two pipes of the same dia but more important the same (ish)length wiv the same loud bit , different connection plate as in the 05 999s transformation kit
! basically as long as its set up right (fuelin for both cylinders ) your average to fast road rider is better off wiv an asym ( cost aswell as owt ) system !! in my opinion !!!! full systems tend " in my opinion " to be sh*t hot on the track , but sh*t on,t road , throttle response at low revs zilch !
my opinion
ace