This Chevette still has the factory 4 cyl. motor, but has a new exhaust manifold.
The exhaust manifold has 2 outputs, instead of one, allowing the second pipe.
Now that is perfect, but I would eliminate the mufflers!!
It is hard to see, but the REAL dual outputs are located under the bumper stops,
near the center of the car.
Hey, Thanks Jim for the pics...I'll do more on this page, soon.