The two combinations I’ve been looking at that should fit between the frame and rocker panels are the following:
1. Borla XR-1 40944 muffler with the Vibrant 17695 or 1769 mufflers as resonators. (Stainless 304) And the cost of stainless tubing would add up.
2. Jones Max Flow MF2259 or MF2289 mufflers (stainless 409) with the Dynomax 24250 muffler as a resonator. (stainless 409). (I would just use aluminized tubing for this and maybe paint or ceramic coat it. However, the cost of ceramic coating may add up to more than just going with the 304 stainless set up and not coating it.)
Scenario 1 is a little over double the price than scenario 2. All mufflers are perforated straight through design. I think the Jones muffler would be quieter than the Borla because it is 24" long and the Borla is only 16" long.
(I've got to say that this kind of bums me out. I had high hopes for the original design and had some fabrication time into it as well.)