Bonneville Tweaks

Hi,

I own a 2012 T100 bonneville, i have started making a few tweaks to it and have now decided to change the silencers. The ones I've purchased, cleaned and dipped are the straight through exhausts (#T2203341 & T2203342). Upon hanging them I noticed that there is around an 80mm difference in length to the original exhausts which came with the bike. I am contemplating either creating a bracket to sit them a little further back, or sourcing some couplers to bridge the difference in length. Any suggestions? or does anyone know a better idea?
Appreciated.