Have you looked at my system R4me ?
One thing to watch with the Carpenter system is you will burn your legs with them in place. My system is set up for road going bikes so has a baffle tube fitted, is designed to run with Air Filters fitted and is tucked in tight with ample leg clearance.
These systems are finished in a high temp Coating by
www.hpcoatings.co.nz ,
The coating is available in either "polished Aluminium" or Satin Black with an internal ceramic heat barrier coating for heat and flow control.
The coating has a three year warranty and won't dis-colour or burn off.
No modifications are required to the bike to fit this header.
Also my system is very cleanly built with no ugly welds through the length of the pipes.
This photo below shows a system that has a reducer to plug into your stock system, or any aftermarket slip-on system that you may have.
If at a latter date you wanted to up grade to either a single Viking muffler, or a twin system, you simply remove the reducer and slide the new rear end system on.
In development at present is a system with two mufflers, this will also be set up for the Touring models.
Contact;
paul@vikingexhaust.com