Hi Relax , ah my sister happy either way but likes the idea my dad says he'll buy a complete Arrow system if it benefits but since the larger diameter headpipe is suspect of negative low-mid range we probably better offer simply cutting the muffler section off , its very simple task to complete his shop is complete with all required equipment for a professional cut & slide a proper length slip-on to mount to factory rear peg location . Not exactly sure on which slip-on yet since not going with the complete Arrow however there is plenty of options & doubt the decibel level will be much as will require a fair size length not a shorty , even my Coffman shorty on my Ninja 300SE aint that much louder with baffle in place . Thanks for all your input its well appreciated .