Bernie,
The system consists of individual runners coming together at a flange. The side pipes have 4 individual tubes going into the muffler. The pices and headers join at the flange.
you can see it here on FFR's site.
http://parts.factoryfive.com/roadste...ne/engine.html
side pipes are number 12363
headers 12467
I started the car briefly and the system is louder than the shorty ford pipes and j-tubes.
The car is strictly street driven. I have 28,000 miles in 3.5 years on the road.
Mike