I have been an interested bystander looking at 2/1's I run a pair of Akra's with filters airbox holes and a PC and it goes really well,but I have looked at the Metal Mule and in the 21st century you make a system that's held together with springs!!! the clamp that holds the silencer on the pipe was old fashioned and ugly 20 years ago but of course it is cheap,I have been tempted to phone them and ask for a custom version the company that makes them is only 30 miles from.

I have found a custom exhaust man that will make the headers but then you have to find the right silencer or alternatively just pay up and buy an OTR version.