[Dave at Pelican Parts]

The stock ones don't really cost much if any less than the Billy Boat ones. But the stock ones fit, unlike the B&B. They also rust, unlike the B&B ones. But I think actually fitting on the car is a little more important...

You may be able to get someone to fabricate some exchanger wrapping around a set of headers. The factory exchangers look kind of like a set of headers with the wrapping added on anyway. A good fabricator should be able to set you up. You would probably want to drive the car to them to get a good design for them; maybe take a 911 exchanger or one of the four-banger exchangers with to give them the idea.

--DD