Big Si
.040 Over
Not sure how the Shotgun compare with the outlaws I have ? Mixed experiences here with DP, but speaking personally , I'm really pleased with mine . I've had them a while now and they are holding up well . They polish up good as new ! Just about to mate mine with a set of CES headers , booked in with the Dyno on the 30th of April so will keep you posted . Decel pop with the outlaws is more of a decel flashbang quite impressive in the dark !
I don't think the Shotguns are as loud as the Outlaws, plus the pipes exit sideways from the bike, better for MOT* day! (* = annual Govt. roadworthy test)