Hi Don. I bought their exhaust kit which included the crossover, then to a single exhaust with the muffler. The kit was the "commando" exhaust, but, at the time, they were not able to provide the resonator....
I ordered the Commando system for the 106in WB cars (Barracudas, Valiants, and of course the early A wagons). Ruth (co-owner) told me they had some resonators in stock BUT appearance-wise, they were somewhat different than an original. Because of that, they were priced considerably less than the repros found on eBay. Since the wagon is so modified, it didn’t much matter to me if the resonator was a little different as long as it worked and provided that great Comnando exhaust sound. With ithe system arriving soon, I will be able to install the O2 sensor in a suitable location.
