That exhaust actually needs to be tuned.
Using different size pipes and mufflers effect the upper rpm range and the low end torque curves some.
The GT40 is a different car. It has similarities but the Pantera has unique attributes and unique requirements.
You might say that you can see the family DNA relationship but they are by no means identical twins.
Painting stripes on a Mule doesn't make him a Zebra.
The 69 Shelby Mustangs have a unique exhaust feature. They have a manifold that transfers the exhaust to the center of the rear of the car, under the rear bumper.
The gas tank fill is directly above that.
Initially the tank used a vented cap.
There were several cars that caught fire as a result of the location of both.
Shelby Automotive issued a recall notice to change the cap to a non vented cap and make appropriate modifications to the filler neck.
It would seem that the heat from the exhaust on just street driven cars was enough to cause an issue?
Just thought this was an interesting aside to BW's comment on the centered exhaust location?
