40bob mufflers

The straight-through with the perforated pipe looks to be the exact same design as a Magnaflow.

As to the chambered muffler, who knows? It would have to be either the Flowmaster design or the MAC FlowPath.

Since muffler design/production is very involved, I'll bet he is buying these from a major manufacturer and re-selling them.....
 
I got an email, and some conversation in TurboFord.org and he said he will work on some pictures and more specs on them.

the free-flow is kinda like the MagnaFlow but with steel wool instead.

he makes these himself. not to bad as long as you know what you are doing and have jigs.